FREE SHIPPING OVER $99

BEST PRICE GUARANTEED

EARN POWERBOAT REWARDS

SUPPORT M-F 9-5 EST: 856-232-6969

Marine parts, fast fulfillment, real support
Get the right part without slowing down your season. PowerBoatSupply helps boat owners order with confidence, backed by trusted marine parts expertise and responsive support.
✓ Fast shipping ✓ Fitment help ✓ Secure checkout

OEM MerCruiser HD-coated 7.4 / 454 / 502 Exhaust Manifold and Riser kit 807078T10 807988A03

Marine parts, fast fulfillment, real support
Get the right part without slowing down your season. PowerBoatSupply helps boat owners order with confidence, backed by trusted marine parts expertise and responsive support.
✓ Fast shipping ✓ Fitment help ✓ Secure checkout
Brand:
Part Number:
K-OEM454-HD-CERAMIC
$1,757.96 $1,669.99
— You save $87.97
Earn $50.00 in PBS Store Credit
Availability: Same Or Next Business Day Shipping: Free Shipping Over $99


Get back on the water faster — ships next business day.
Trusted by boat owners & marine techs
Real OEM parts, fast shipping, and support from a Mercury Platinum Dealer.
✓ Best Price ✓ Fast Fulfillment ✓ Trusted Fitment ✓ Real Support
✓ 17,500+ verified 5-star reviews

Description

OEM MerCruiser 454 and 502 Exhaust Kit

Hot Dipped and coated OEM parts.

Fits:
 • 454 and 502 center riser style engines with 4 inch risers
 • Approx. 1983-2002

Includes:
 • 2x OEM MerCriuser Manifold 807078T10
   (manifold to head gaskets included in box)
 • 2x OEM 4" Riser, 7 degree - 807988a03
 • 2x OEM riser gaskets (selectable style)

 

 

View AllClose

Warranty Information

Mercury Marine & Quicksilver products carry a 1 year factory warranty against defects and workmanship. Serialized items such as engines, drives, and transom assemblies must be installed by a dealer for warranty to be valid.
View AllClose

Specs

UPC:
K-OEM454-HD-CERAMIC
MPN:
807078T10 & 807988A03
Coating:
Hot Dipped (Ceramic)
Engine Size:
Big Block V8 (454 and 502)
Generation:
Wet Joint (86-2002)

Reviews

View AllClose