• DNJ 1991 GMC C3500HD 7.4L Exhaust Valve
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DNJ

DNJ 1991 GMC C3500HD 7.4L Exhaust Valve

DNJ 1991 GMC C3500HD 7.4L Exhaust Valve

Part number: EV3111_151

$15.99 USD
$15.99 USD
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Listed for: GMC C3500HD 7.4LFitment notes & questions

1991 GMC C3500HD 7.4L Exhaust Valve by DNJ for 1991 GMC C3500HD with the 7.4L engine. Valves are usually replaced during a cylinder head rebuild, along with guides, seals and a valve job.

Quick facts

  • Brand: DNJ
  • Part type: Valve
  • Listed for: 1991 GMC C3500HD
  • Engine: 7.4L
  • Engine code: VIN S 16V OHV
  • Part number: EV3111_151

Listed fitment

  • [1980-2000] GM [Nitride Coated; 1 Groove; 43.7mm Head Dia., 9.4mm Stem Dia., 136mm O.A.L.] / V8 / 7.4L / 454 OHV 16V

Good to know

  • Notes: Nitride Coated; 1 Groove; 43.7mm Head Dia., 9.4mm Stem Dia., 136mm O.A.L.; Exhaust, [1.720" Head Dia]
  • Warranty terms: 12 month or 12,000 mile warranty whichever comes first. Warranty must be requested by the original purchaser and is limited to the replacement of the alleged defective part(s) only.

Tip: Have the valve seats cut or lapped so the new valves seal fully.

View full details

DNJ engine valves for the GMC C3500HD 7.4L: what to know

Burned or bent valves cause misfires and low compression. Guides that wear let valves wobble and burn oil.

Fitment notes

  • Listed for: GMC C3500HD 7.4L.
  • Engine: match the engine size and code to your vehicle; the same model often came with several engines.
  • Specs, lead time and warranty come from DNJ and can change. The details above this guide are the latest we have.

Not sure it fits? Send us your year, make, model, engine and trim and we'll check before you order.

Ask about fitment

What else to plan for

More for your car: GMC Exhaust Valves · GMC Parts · All Intake Valves · Engine

Questions about GMC C3500HD 7.4L engine valves

Will this fit my GMC C3500HD 7.4L?
It is listed for the GMC C3500HD 7.4L. Check your year, model, engine and trim against the title and details above. If anything is different, contact us and we will confirm fitment before you order.
How do I know a valve is bad?
A compression or leak-down test shows whether a cylinder is losing pressure past a valve.
Where do specs and warranty details come from?
From DNJ. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.

Questions & answers

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