Delphi 25348180 fuel injector service kit — o-rings, filter, and grommet
Kit contents Delphi 25348180 injector

Kit contents and an injector from a Mercruiser 8.1L 496 we serviced in the shop.

Delphi 25348180 Injector Service Kit

Complete rebuild kit for all 8 injectors in the Mercruiser 8.1L 496 MAG and HO engines, and the GM Vortec 8100 big block trucks. Same injector platform, same kit for both.

What's in this kit (all 8 injectors)

  • 8x upper o-rings (brown)
  • 8x inlet filter screens (rectangular flat basket)
  • 8x lower o-rings (black)
  • 8x lower cup grommets (black)
Complete 8-injector engine kit
$39.99
Free shipping — USPS Ground Advantage
Shop-verified: We use these exact kits on injectors we service here. Same parts, same supplier — if we trust them in customer engines, we're confident selling them to you.

Kit covers all 8 injectors for one complete engine service — fits both the Mercruiser 8.1L 496 and GM Vortec 8100 V8.

Compatibility

Mercury sourced the 496/8.1L block directly from GM, so the marine and truck injectors are the same part. Confirmed through service records and manufacturer cross-reference data.

Marine

Engine Model Years Config
Mercruiser 496 MAG MPI 2001–2009 Sterndrive (MCM), 340 hp
Mercruiser 496 HO / 496 HO Bravo MPI 2001–2009 Sterndrive (MCM), 425 hp
Mercruiser 8.1S MPI 2001–2009 Inboard (MIE)
Mercruiser 8.1S Horizon MPI 2001–2009 Inboard (MIE)
Crusader 496 / 8.1L MPI 2001+ Inboard marine
Indmar 8.1L MPI 2001+ Inboard marine

Automotive — GM Vortec 8100 (L18)

Vehicle Years Engine
Chevrolet Silverado 2500 HD / 3500 2001–2006 8.1L Vortec 8100 V8
GMC Sierra 2500 HD / 3500 2001–2006 8.1L Vortec 8100 V8
Chevrolet Avalanche 2500 2002–2006 8.1L Vortec 8100 V8
Chevrolet Express 3500 Van 2001–2002 8.1L Vortec 8100 V8
GMC Savana 3500 Van 2001–2002 8.1L Vortec 8100 V8

Cross-Reference Part Numbers

Delphi 25348180 Delphi 17113739 Delphi 25176061 Mercury 881693002 Mercury 881693001 Mercury 8M0221353 GM 3861278 GM 12575073 Standard FJ10471 Crusader RA087006

Part numbers 25348180 and 25176061 are the same injector — two different OEM designation numbers for the same Delphi Multec II unit. The Delphi Multec II mini connector distinguishes this injector from older Mercruiser MPI engines that used the larger Multec I connector.