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![P4891(4).50 Piston for 2006-2011 Honda 1.8L [0.50 mm Undersize]](https://www.jegs.com/images/mini_750/400/416/416-p4891(4).50.jpg)
Vehicle Info NeededENGINETECHPART NUMBER: 416-P4891(4).50
P4891(4).50 Piston for 2006-2011 Honda 1.8L [0.50 mm Undersize]
$8799
Ships on 09/15/2026
Lowest Price GuaranteeHonda/Acura
Piston2006-2011 Honda 1.8L Piston Size: 0.50 mm Undersize Set of 4
The Enginetech P4891(4).50 is a replacement piston for Honda, 1.8L 1799 engines, sized at 0.50 mm Undersize. Engineered to OE specifications for reliable combustion chamber performance.
Enginetech P4891(4).50 Piston Features:
- Fitment: Honda, 1.8L 1799
- Size: 0.50 mm Undersize
- Engineered to OE specifications for direct replacement
- Note: Dish top. 1.137 CH. Anodized top ring groove. Coated skirt. Use S81124 rings.
Part TypePiston
BrandENGINETECH
Package Height4.0
Package Width9.25
Package Length9.25
Weight3.5 PG
Part CategoryReplacement Parts
Compression Height1.137
Size0.50 mm Undersize
QuantitySet of 4
Oil Ring Thickness2.00
RemanufacturedNo
Bore Diameter3.189
Piston Pin Outside Diameter0.7858
Second Compression Ring Thickness1.20
Top Compression Ring Thickness1.20
Piston MaterialCast aluminum
FitmentHonda
Part FitmentDirect Fit
Engine Displacement1.8L 1799
Vendor Part NumberP4891(4).50
Package Qty1
Package TypeEA
No Questions
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