Wiseco Piston Sets - 4 Cyl (K598M9975)

Wiseco K598M9975 Piston Sets - 4 Cyl - Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc 99.75 Piston Shelf Stock Kit for a 2004-2012 Subaru Impreza WRX STI, 2007-2012 Subaru Impreza WRX STI Limited and 2010-2010 Subaru Impreza WRX STI Special Edition.

Image(s) for display purposes only. Actual product may vary.

Manufacturer: Wiseco

Product: Wiseco Piston Sets - 4 Cyl

Part Number: K598M9975

UPC: 193564447944

$732.99

Coupon Code:OGSavings

Free Shipping (Continental US)

New with manufacturer warranty

Availability: IN STOCK
WAREHOUSE (East: 2 | Midwest: 1)
Generally ships within 1 business day.

Have a question regarding this product? Contact us.

Fitment:

NOTES: Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc 99.75 Piston Shelf Stock Kit

Years	Make	Model	Trim
2004 - 2012	Subaru	Impreza	WRX STI
2007 - 2007	Subaru	Impreza	WRX STI Limited
2010 - 2010	Subaru	Impreza	WRX STI Special Edition
2011 - 2012	Subaru	Impreza	WRX STI Limited

Description:

Wiseco Subaru EJ257 Piston Set, 99.75 mm Bore, 30.70 mm Compression Height, 0.9055 in. Pin Diameter, Sport Compact, Set of 4..
Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders. Packed full of custom-level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco?s Professional Series.

Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strengthArmorGlide? Skirt Coating: seizure resistant, friction reduction, and quieter operationFully machined crown featuresPrecision ring grooves, anti-detonation groove, and additional ring seal improving featuresForced pin oilingDesigned and built to withstand heavy to severe duty performance applications

Other 2004-2012 Subaru Impreza Piston Sets - Forged - 4cyl:

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CP Piston & Ring Set for Subaru EJ25 WRX STi - Bore (100.0mm) - Size (+0.5mm) - CR (10) - Set of 4

SHIPS FROM MANUFACTURER
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)

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2007-2007 Subaru Impreza WRX STI Limited
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CP Pistons Piston Sets -4 Cyl SC7443-4

CP Piston & Ring Set for Subaru EJ257 WRX STI- Bore (100.0mm)-Size (+0.5mm)- CR (10.0) - Set of 4

SHIPS FROM MANUFACTURER
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)

2010-2010 Subaru Impreza WRX STI Special Edition
2011-2012 Subaru Impreza WRX STI Limited
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Manley Performance Piston Sets -4 Cyl 621002C-4

Manley 04+ Subaru WRX STi (EJ257) 75mm DE-STROKED 99.75mm +.25mm Bore 8.5:1 Dish Piston Set w/ Rings

IN STOCK (2) - LOW
SHIPS FROM MANUFACTURER
(Last checked: 02/16/2026)
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)

2010-2010 Subaru Impreza WRX STI Special Edition
2011-2012 Subaru Impreza WRX STI Limited
2007-2007 Subaru Impreza WRX STI Limited
2004-2012 Subaru Impreza WRX STI
2009-2012 Subaru Impreza WRX Premium
2010-2012 Subaru Impreza WRX Limited
2006-2007 Subaru Impreza WRX Limited
2006-2012 Subaru Impreza WRX
2006-2007 Subaru Impreza WRX TR

CP Pistons Piston Sets -4 Cyl SC7434-4

CP Piston & Ring Set for Subaru EJ257 WRX STI- Bore (99.75mm) - Size (+0.25) - CR (8.5) - Set of 4

SHIPS FROM MANUFACTURER
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)

2010-2010 Subaru Impreza WRX STI Special Edition
2011-2012 Subaru Impreza WRX STI Limited
2007-2007 Subaru Impreza WRX STI Limited
2004-2012 Subaru Impreza WRX STI

CP Pistons Piston Sets -4 Cyl SC7420

CP Piston & Ring Set for Subaru EJ257 WRX STi - Bore (99.5mm) - Size (Standard) - CR (8.2)

IN STOCK (5+)
SHIPS FROM MANUFACTURER
(Last checked: 02/16/2026)
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)

2004-2012 Subaru Impreza WRX STI
2007-2007 Subaru Impreza WRX STI Limited
2011-2012 Subaru Impreza WRX STI Limited
2010-2010 Subaru Impreza WRX STI Special Edition

Wiseco Piston Sets - 4 Cyl (K598M9975)

Fitment:

Description:

Related Links:

Other 2004-2012 Subaru Impreza Piston Sets - Forged - 4cyl: