Ultra Series Piston Set By JE - 84mm Standard Bore | 9.5:1 CR | Stock Stroke 89.6mm - BMW N54



Part# 367877

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JE’s Ultra Series pistons for sport compact and euro applications combine all of the best, most desirable piston features, such as thermal barrier crown coating, lateral gas ports, thick-wall wrist pins, and a revolutionary new forging technology for the ultimate in strength. Premium, gas-nitrided carbon steel rings are included.

Bore (in) 3.307
Bore (mm) 84. 
Top Compression Ring Thickness 0.0400
Second Compression Ring Thickness 0.0480
Oil Ring Thickness 0.111
Forging Type FSR
Volume (cc) -21.30
Series JE Ultra Series
Piston Head Type Inv Dome/Dish
Pin Diameter (IN) 0.866
Compression Height 1.244
Make BMW
Wrist Pin Style - floating or press fit Floating
Wall Thickness (IN) 0.230
Ringset Part Number JG1001-3307
Ring Brand ProSeal
Ringset Included Yes
Retainer Thickness 0.063
Retainer Lock Style Wire Lock
Retainer Lock Part Number 866-063-MW
Retainer Diameter (IN) 0.866
Replacement Single Piston 367877S
Piston Pin Inside Diameter 0.406
Piston Pin Material 9310 NICKEL CARBON STEEL ALLOY
Piston Material 2618
Piston Pin Length (IN) 2.250
Piston Avg Wt 334
Pin Offset Yes
Pin Brand JE Pistons
Pin Part Number 866-2250-23-93C
Pin Included Yes
Pin Diameter (mm) 22.00
Oil Rail Support Included No
Deck Clearance 0.000
Brand JE Pistons

OE Part # 11-25-7-577-581 / 11 25 7 577 581 / 11257577581

⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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