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New GM Oil pump in the box
GM# 12625823 - OIL PUMP 2008 Tahoe, Yukon, Escalade 6.0L Hybrid
May fit others........
$45 + actual shipping or local pick-up

MVR 155

In 2008 the Tahoe/Yukon was not offered with a 6.0L engine, it was the 5.3L engine. The 6.0L engine was the gas engine option for the heavy duty (2500/3500) trucks and pre 2007 Escalade/Denali's. The Escalade and Denali started receiving the 6.2L engine in 2007 when the body style changed. You might want to confirm the compatibility of that part unless the 5.3L engine uses the exact same oil pump.

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Actually it was, the Caddy/Tahoe/Yukon can come with four different engines.

This pump is for a 2008 Tahoe Hybrid with 6.0L Engine (RPO LFA)
I will clarify the title,

Lifted but suppose to be accurate;

2008/9 Vortec 6.0L V-8 VVT Hybrid (LFA)

VORTEC 6.0L Gen IV V-8 (LFA) HYBRID TRUCK ENGINE
2009 Model Year Summary

· New Engine for 2009 Chevrolet Silverado Hybrid and GMC Sierra Hybrid. Continues from 2008 model year as carryover model for Chevrolet Tahoe Hybrid, GMC Yukon Hybrid, Cadillac Escalade. Hybrid.
· Variable Valve Timing
· Active Fuel Management
· Variable Displacement Oil Pump
· Returnless Fuel Injection with Stainless Steel Fuel Rail
· Advanced Electronic Throttle Control
· E67A Engine Control Module
· 58X Ignition System
· Enhanced Noise, Vibration and Harshness Control
· Late Intake Valve Closing

Oil Pumps - TMI
The Gen IV engines have used two different oil pumps that have three different
springs for the relief valve.
• The 12586665 pump that was carried over from the Gen III applications pumped
0.96 cubic inches per revolution. It was used on all the cast iron Gen IV motors and
on a few of the aluminum ones like the LS2 and LH8 that came without AFM or
VVT. The replacement pump is the Melling M295.
• GM introduced a new pump beginning in ’05 with 33% more capacity that
pumped 1.26 cubic inches per revolution. There were two versions of this pump, but
the only difference between them was the spring for the relief valve. The
original 12571885 pump that was used for a couple of applications in ’05-
’07 had a red spring that relieved the oil pressure at 43 lbs.
Based on our research, we believe that GM originally intended to build these early
5.3L Gen IV engines with both AFM and VVT, so they increased the pressure and the
volume to make sure the pump could supply enough oil for both of them, but they apparently
decided they didn’t need the higher oil pressure because this pump was replaced by
the 12612289 that had a 33 lbs. relief valve in ’08. The original high-pressure pump is available
from Melling as the M355, but we prefer to use the M365 that has the lower pressure
instead. • The 12612289 is the latest version of the big pump. It has the bigger housing with the extra capacity, but it has the yellow spring that reduces the maximum oil pressure from 43
lbs. down to 33 lbs. It’s used on all of the truck engines with an aluminum block that
have AFM or VVT or both. It’s the Melling M365.
• The LFA and LZ1 Hybrids came with a variable displacement oil pump that supposedly saves two horsepower. It’s available under p/n 12625823 for the LFA and p/n 12623423 for the LZ1

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$45 + actual shipping or local pick-up