Engine Parts Stocks and Companies in India

The largest Engine Parts stocks in India by market value are Sundram Fasteners (₹23,078 crore), SPR Auto Technologies (₹19,749 crore) and Banco Products (India) (₹8,712 crore), at prices of 4 Nov 2026.

• Sundram Fasteners: ₹1,034.70 | market value ₹23,078 crore | P/E 35.9
• SPR Auto Technologies: ₹4,257.50 | market value ₹19,749 crore | P/E 32.8
• Banco Products (India): ₹609.10 | market value ₹8,712 crore | P/E 18.0
• India Nippon Electricals: ₹1,197.10 | market value ₹2,708 crore | P/E 26.2
• Triton Valves: ₹926.85 | market value ₹579 crore | P/E 29.7

Share price | market value | P/E, biggest first. Prices, market values and ratios at the official close of 4 Nov 2026; the score list below uses the weekly figures.

Ranked by the 4-Factor Sector Score (growth & earnings 35, capital efficiency 25, valuation 20, relative strength 20). Prices as of 30 Oct 2026.

All 5 listed Indian Auto Ancillaries - Engine Parts companies are named here, largest first. This is the set of companies people mean when they search for a Nifty Auto Ancillaries - Engine Parts index; NSE publishes its own indices only for the largest sectors, so this equal-weighted set stands in for one. One large company cannot set the reading.

1. Sundram Fasteners Ltd₹23,100 cr
2. SPR Auto Technologies Ltd₹20,300 cr
3. Banco Products (India) Ltd₹8,210 cr
4. India Nippon Electricals Ltd₹2,540 cr
5. Triton Valves Ltd₹579 cr

5 Engine Parts companies in the Auto Ancillaries - Engine Parts industry group have a page on Sector Alpha, by market value as of 30 October 2026, and all 5 are listed below, largest first. The largest is Sundram Fasteners (₹23,078 crore) and the smallest with a market value is Triton Valves.

Download all 5 Engine Parts companies (CSV)

The line below covers up to 5.2 years and opens on the 5Y view; the buttons cut it shorter. Over the last two years (104 weeks) this sector is 45% ahead of NIFTY 500. Earnings across its companies grew 17% on average over the last four reported quarters. It has been ahead of NIFTY 500 on a rolling three-month view for 30 weeks running.

Price and the fundamentals both up. 1 of 5 companies pass the momentum test (5+ points ahead of the Nifty 500 over 3 months, within 20% of the 52-week high).

Ahead of NIFTY 500 on the three-month view for 30 weeks running; 4 of the 5 companies in the industry index above their 200-day average (no change from four weeks earlier); 1 of those 5 pass the momentum test (1 fewer than four weeks earlier); earnings rising at 5 of the 5 that report earnings.

Participation is shrinking, 2 → 1 of 5 over four weeks, after being ahead of NIFTY 500. Price-only fade, 5 of 5 members have higher trailing twelve-month earnings than a year ago, so the fade is in the price, not in the earnings.

Both lines start at 200 in the same week, so the gap between them tells the story: the sector line is an equal-weighted index of its 5 companies. The bars underneath are trailing 12-month earnings per share, one bar per reported quarter, each member set to 100 at the start and the sector taking the middle value, so a price line pulling away from flat bars means the market is paying more for the same earnings. A bar turns grey when that figure is lower than the quarter before. The rules are fixed and the same everywhere on this site: ahead by 5% or more over three months, or behind by 20% or more over a year while earnings grew 20% or more. Hover or tap any point to read both values and the gap.

Auto Ancillaries - Engine Parts has done better than the NIFTY 500 by 25.4% over the last 52 weeks. Over 13 weeks the gap is a lead of 5.1%. SPR Auto Technologies Ltd is the strongest against the sector itself at +12.9%. Readings are as of 30 October 2026.

Relative-strength score for the industry: 9.6 as of 30 October 2026 (leaders, rising).

Auto Ancillaries - Engine Parts has done better than the NIFTY 500 by 25.4% over 52 weeks and by 5.1% over 13 weeks. 1 of 5 companies we track is beating the NIFTY on relative strength (how a share price has done against the index over recent months), and 2 of the 3 with a long enough price history are ahead of the industry itself.

A score that ranks each company against the others in its industry. The four parts shown always add up to the total: Growth & earnings (35), Capital efficiency (25), Valuation (20), and Relative strength (20). Missing or old evidence affects only its own part, never as a hidden adjustment.

India Nippon Electricals Ltd has the strongest current balance of earnings trajectory, business quality, valuation and price confirmation, with 95.6% evidence confidence.

Banco Products (India) Ltd scores well on valuation against its peers or its own history, but its earnings have not yet improved enough to back that up.

SPR Auto Technologies Ltd has the strongest one-year price move in Auto Ancillaries - Engine Parts at +67.3%. It also leads on relative strength against the NIFTY, at +27.6%. 4 of 5 companies we track are ahead of the index on that measure. Every line covers 313 weekly closes through 30 October 2026.

Price and relative strength

Price · same starting point: Every company, the sector's own index and NIFTY 500 all start level on the left edge of the window, so only the distance between the lines counts: the highest line has risen the most since then, and the chart at the top of this page is drawn the same way. It opens on one year; the buttons beside it stretch that to three or five.

RS vs NIFTY 500: How far ahead of or behind NIFTY 500 each company has been running, measured against its own recent average of that comparison, so the flat line at zero IS NIFTY 500: above it the company is beating the market, below it the market is beating the company. It opens on one year.

RS vs sector: The same measure taken against Auto Ancillaries - Engine Parts itself instead of the whole market, so the flat line at zero is the sector: above it the company is beating its own peers, which is the sharper test of the two. It opens on one year.

Biggest one-year moves

Strongest against NIFTY 500

Strongest against the sector itself

The whole history shows successive advances and setbacks, not one uninterrupted rise. The price measure rose from 101.7 in December 2016 to 189.8 in December 2017, declined to 75.3 in March 2020, recovered to 222.9 in September 2021, and retreated to 176.2 in June 2022 before the next advance. In the week of 5 October 2026, 75% of 4 Auto Ancillaries - Engine Parts companies were beating the Nifty 500, against 80% on 25 May 2026.

Auto Ancillaries - Engine Parts is one of the Top 25 sectors in our latest review.

From our industry review of 10 October 2026.

New products and new markets offer lasting possibilities; factory spending, customer approvals and cost recovery still need to turn those possibilities into profit. The other companies are not sufficiently covered to call this a change across the whole industry.

From our industry review of 10 October 2026.

1 of 5 Auto Ancillaries - Engine Parts companies held a results call for July to September 2026. Sundram Fasteners guided: H2 revenue growth to mirror H1 pace with full year at H1 level and slight improvement across original equipment retail and exports.

From the results calls for July to September 2026.

Big funds, foreign and Indian, raised their stake by 0.7 points over the last two quarters. Founders and promoters cut theirs by 0.4 points.

• Spending on new plants and equipment was ₹2,374 crore in the last 12 months, 185% more than a year before.
• Projects still being built shrank 15% in a year.

Big funds = foreign and Indian institutions, change in their share of ownership across 5 Auto Ancillaries - Engine Parts companies, in percentage points.

Ownership and spending as of 10 October 2026.

The next things that show whether the Auto Ancillaries - Engine Parts story is on course. First: The next quarterly print shows whether SPR recovers higher commodity costs from customers as guided.

• SPR's update shows whether Antolin improvements and electric-motor capacity translate into profit.
• Takahata's new business begins generating revenue on the stated early-next-year schedule.
• Sundram reports progress toward wind and aerospace sales goals and explains the higher spending plan.
• A comparable member-by-member price update resolves the conflicting participation measures.

What would change the story

The next sector quarterly profit falls below its year-earlier level while revenue still grows: that would show cost pressure and new-business execution consuming the growth that currently supports this breakout.

From our industry review of 10 October 2026.

Sundram Fasteners Ltd has the highest Revenue among the 5 Auto Ancillaries - Engine Parts companies compared here, at ₹7,064 crore. SPR Auto Technologies Ltd is next at ₹5,601 crore. SPR Auto Technologies Ltd has the highest Revenue growth at 46.8%, so level and change sit with different companies. Its Revenue series carries 20 reported observations across the 20-quarter window.

What the numbers say: Sundram Fasteners Ltd is the largest at ₹7,064 crore, 26.1% ahead of SPR Auto Technologies Ltd. Fast growth from a smaller base is not yet the same as proven size.

What this means: Sundram Fasteners Ltd is the size to compare against; SPR Auto Technologies Ltd is the one growing fastest. The faster grower has to keep that growth and turn it into margin and returns before it counts as more than a fast start.

This conclusion weakens if: Sundram Fasteners Ltd's growth falls below SPR Auto Technologies Ltd's for two consecutive comparable reports while operating margin also compresses.

Revenue is compared on a common reported-currency basis. Growth is year-on-year, so seasonality does not masquerade as progress.

Revenue · company comparison

Revenue · largest

Revenue growth · fastest growers

All-company data · latest reported quarter

In every all-company table on this page, each figure is the company’s latest single reported quarter. The rankings above them use trailing-twelve-month or current-market values, so a company can legitimately show a different number in each.

Revenue shows both size and speed. A large company can absorb shocks and pay for wide distribution; faster growth can mean market-share gains, new capacity or stronger demand. The best sign is usually growth that lasts without hurting margins and returns.

Banco Products (India) Ltd has the highest OPM among the 5 Auto Ancillaries - Engine Parts companies compared here, at 18%. SPR Auto Technologies Ltd is next at 17%. India Nippon Electricals Ltd has the highest Margin change at +1 percentage points, so level and change sit with different companies.

What the numbers say: Banco Products (India) Ltd leads opm at 18%; India Nippon Electricals Ltd leads margin change at +1 percentage points.

What this means: Banco Products (India) Ltd sets the level to compare against; the company improving fastest needs another report to confirm the change.

This conclusion weakens if: The next two comparable reports reverse the current margin change signal.

Operating margin compares operating profit with revenue. Improvement is measured in percentage points, not percentage growth.

Operating margin · company comparison

OPM · highest

Margin change · fastest expanders

All-company data · latest reported quarter

Sundram Fasteners Ltd has the highest Net profit among the 5 Auto Ancillaries - Engine Parts companies compared here, at ₹634 crore. SPR Auto Technologies Ltd is next at ₹595 crore. Triton Valves Ltd has the highest Profit growth at the 100% top of the scoring scale, so level and change sit with different companies.

What the numbers say: Sundram Fasteners Ltd earns the most, ₹634 crore of profit over the last 12 months, 6.6% above SPR Auto Technologies Ltd. Triton Valves Ltd shows at least 100% on the scoring scale (255.1% in full) growth from a profit base of ₹18 crore. A fast rate from a small base matters less than a large profit that keeps coming.

What this means: Sundram Fasteners Ltd sets the level to compare against; the company improving fastest needs another report to confirm the change.

This conclusion weakens if: The next two comparable reports reverse the current profit growth signal.

Net profit is the residual after operating costs, interest and tax. Growth off a loss or near-zero base is excluded from the fastest-grower rank.

Net profit · company comparison

Net profit · largest

Profit growth · fastest growers

All-company data · latest reported quarter

Banco Products (India) Ltd has the highest ROCE among the 5 Auto Ancillaries - Engine Parts companies compared here, at 30.9%. SPR Auto Technologies Ltd is next at 20.8%. Triton Valves Ltd has the highest ROCE change at +5.5 percentage points, so level and change sit with different companies. Its ROCE series carries 15 reported observations across the 20-quarter window.

What the numbers say: Banco Products (India) Ltd leads ROCE at 30.9%, 10.1 percentage points above SPR Auto Technologies Ltd. A high return reported once may be one good year; a high return reported year after year shows a lasting business.

What this means: Banco Products (India) Ltd sets the level to compare against; the company improving fastest needs another report to confirm the change.

This conclusion weakens if: The next two comparable reports reverse the current roce change signal.

ROCE asks how much operating return the business earns on the capital employed. Direction matters, but a single exceptional year should not be mistaken for durability.

Return on capital · company comparison

ROCE · highest

ROCE change · fastest improvers

All-company data · latest reported quarter

Banco Products (India) Ltd has the lowest PEG among the 5 Auto Ancillaries - Engine Parts companies compared here, at 1.02×. India Nippon Electricals Ltd is next at 1.27×. The same company also has the lowest P/E, at 17×. 4 of 5 companies report a comparable reading, the latest through Jun 2026.

What the numbers say: Banco Products (India) Ltd has the lowest comparable PEG at 1.02×, 19.7% below India Nippon Electricals Ltd. That would need today's multiple, the company's own history and steady growth to agree.

What this means: A low valuation is a reason to look closer at the business, not a conclusion on its own.

This conclusion weakens if: The next two comparable reports reverse the current p/e signal.

PEG is shown only when earnings are positive and three-year EPS growth is between 5% and 60%. It is worked out the same way every time, as the P/E on the last 12 months of reported earnings divided by that growth rate, never on expected earnings. On Indian companies it is shown only where the two data feeds agreed. Where any of that fails the ratio is left out rather than printed: a P/E divided by a loss, or by growth measured off a tiny base, is a number that looks precise and means nothing.

Valuation · company comparison

PEG · lowest PEG

P/E · lowest P/E

All-company data · latest reported quarter

Auto Ancillaries - Engine Parts companies show up on 3 of our India lists. The most are on the small & mid cap stocks list (2 companies).

This Auto Ancillaries - Engine Parts comparison names 4 specific ways its own evidence can mislead, all listed below. All 5 companies here report on comparable dates, so no rank carries a stale marker. A high growth rate can still come from a very small starting figure.

Keep these limits visible

• A high growth rate can come from a very small starting figure. The page keeps level and change separate for that reason.
• A high ROCE can be temporary, or look high because the capital base is small. It is best read beside margin, cash flow and how much is spent back on the business.
• The 4-Factor Sector Score ranks published data only. Management quality, upcoming events and risks are not part of it.
• An “all companies” line chart preserves completeness, but rank changes should be checked against reporting dates before drawing a conclusion.

This comparison is built from the reported filings of 5 Auto Ancillaries - Engine Parts companies, normalized to a common ₹ scale and a shared quarter axis of up to 20 quarters each. Fundamentals run through Sep 2026 and market data through 30 October 2026.

Every company's second-feed figures reconcile against the primary source on overlapping reported periods, so nothing here is unverified or withheld.

These 24 answers restate the Auto Ancillaries - Engine Parts comparison above in question form. Every one is computed from the same 5 companies and the same reported filings as the rankings and charts, current through Sep 2026. Price and relative-strength answers run through 30 October 2026. Nothing here is estimated, and none of it is a recommendation.