Description
Comparison points and tradeoffs
When comparing APDTY 12556476 Exhaust Manifold Right Side (6.2L / 6.5L Detroit Diesel; Turbo) with other Manifolds options, use this source-backed detail as the primary discriminator: Referenced part number: 12556476.
Use this second fact to evaluate the tradeoff: Category: Replacement Parts / Exhaust & Emissions / Manifold & Parts / Manifolds. A third point to compare across alternatives is: Application note: 5L Turbo Diesel See Fel Pro ES 73125 or MS15336 For Gaskets See APDTY-141415 For The Turbocharger If Needed Replaces Original Manifolds Stamped With 12556476, 10149624 Brand New Exhaust Manifold Compatible with Right Side (Passenger Side) Compatible with Numerous 1994-2002 Chevorlet & GMC Trucks (6.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
Brand New Exhaust Manifold
Compatible with Right Side (Passenger Side)
Compatible with Numerous 1994-2002 Chevorlet & GMC Trucks (6.5L Diesel Engine ONLY)
Replaces 12556476, 10149624
⚠ California Proposition 65 WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Source product highlights
- Heavy Duty Cast Iron Exhaust Manifold Assembly; Right Side Of 6.2L or 6.5L Detriot Diesel Engine
- Also Compatible On Hummer Humvee Models With 6.5L Turbo Diesel
- See Fel Pro ES 73125 or MS15336 For Gaskets
- See APDTY-141415 For The Turbocharger If Needed
- Replaces Original Manifolds Stamped With 12556476, 10149624




Marco A –
Right on !! And cheap
Jonathan Endris –
All I can say is WOW!!! Faster than expected delivery and great product. I will recommend this anyone. Thanks for excellence!!!
Nicholas Reynolds –
Excellent quality and exact fit. GM does not manufacture this product anymore and I was very pleased to find one and at and at a great price!
Casey –
The package not only came smashed (like it had been dropped a time or two), the manifold did not fit my 1998 6.5L turbo diesal (chevy k2500). It had to be cut and welded in spota because waiting any longer for another manifold was not an option.
Anonymous –
The old turbo exhaust manifold in my 1998 6.5 diesel was completely rotted. I searched for a replacement and for a while only found used manifolds. When I found this manifold I was a little skeptical but when it arrived I was impressed that all the bolt holes seamed to be right on for the turbo and the side the bolts to the head of the engine. I did have to mill out one of the exhaust ports with a die grinder because it looked like the casting went bad and the welded to fill it. There was too much weld which substantially blocked the exhaust flow. However after 15 minutes of grinding it was completely passable and has not given me an issue.
JOANN SIMPSON –
Had to make modifications for it to fit
Customer –
Item is what it says it is. Luckily it didn’t not come in broken definitely poorly packaged. Might want to order 2 and return if necessary
Rj –
Good quality good fit. Angle is kinda weird on crossover side.