Overhaul Engine Rebuild Kit Fit 07-12 Subaru Impreza WRX STI 2.5L Turbo EJ257

Overhaul Engine Rebuild Kit Fit 07-12 Subaru Impreza WRX STI 2.5L Turbo EJ257.
Designed using state-of-the-art technology and with customers in mind. This
product is made of high-quality materials to serve you for years to come. It
will meet your needs and deliver great quality at an affordable cost. Replace
Part : HS26531PT, HS26531PT-1, CS26170, ES72905, 12006AC390, 13028-AA240,
13073-AA080, 13085-AA061, 13073-AA230, 13033-AA042, 21111-AA240

Overhaul Engine Rebuild Kit Fit 07-12 Subaru Impreza WRX STI 2.5L Turbo EJ257.
Designed using state-of-the-art technology and with customers in mind. This
product is made of high-quality materials to serve you for years to come. It
will meet your needs and deliver great quality at an affordable cost.

Fits Following Models:
2007-2012 SUBARU IMPREZA WRX STI 2.5L 2458CC H4 DOHC TURBOCHARGED, (16
VALVE), ENG CODE "EJ257"

This item includes:

Full Gasket Set (Multiple Layers Steel (MLS) Head Gasket, Valve Cover Gasket, Valve Stem Seals, Intake Manifold Gasket, ..., Other Small Gaskets, RTV Silicone)
12 Cylinder Head Bolts
4 Pistons with Complete Ring Set (sizes available: see options above)
Standard Bore Diameter: 99.50mm
1st Group: 1.20mm
2nd Group: 1.20mm
Oil Ring: 2.00mm
4 Piston Wrist Pins
8 Cir Clips
Main Bearing Set - Thrust washers at 5 position (sizes available: see options above)
Rod Bearing Set - 52mm journal (sizes available: see options above)
1 Timing Belt (281 teeth)
1 GMB Tensioner (bearing & hydraulic cylindrical integral)
1 GMB Upper Idler (bearing)
1 GMB Lower Idler (bearing with inner flange)
1 GMB Upper Idler (small bearing. outside diameter 31mm)
1 GMB Lower Idler (sprocket with bearing)
Water Pump w/ Gasket (3 outlet pipes)
Oil Pump

Piston Measurements
---
Piston Part | UOM| STD| 0.25| 0.50| 0.75| 1.00
[PS9013E](https://stores.ebay.com/Mizumo-Auto-
Parts/_i.html?_nkw=PS9013E&LH_TitleDesc=1&submit=)| MM| 99.500| 99.750|
100.000| 100.250| 100.500
IN| 3.917| 3.927| 3.937| 3.947| 3.957
Piston Ring Part| Piston Information
[RS9013](http://stores.ebay.com/Mizumo-Auto-
Parts/_i.html?_nkw=RS9013&LH_TitleDesc=1&submit=)
![](https://mizumoauto.net/ebay/images/gallery/pistons/PS9013E
D.jpg)
Specifications| MM| IN
Cylinder| 4
Bore| 99.500| 3.917
Comp| 30.700| 1.209
| Dist.| 1| -
---|---|---
2| -
3|
| 2.000
---
5.100
5.400
| 0.079
---
0.201
0.213
Length| 51.400| 2.024
| Surface Treatment| Cir Clip|
| Image
---|---|---|---
Head| Skirt
Anodized Head| Moly Skirt
Remarks
Measure for CYL clearance| MM| IN| From Bottom of the Skirt
15.000| 0.591
Pin Length| 64.000| 2.520
Pin Diameter| 22.990| 0.905
1st| 1.200| 0.047
2nd| 1.200| 0.047
Oil Ring| 2.000| 0.079
| |
CAUTION!!: Bore diameter is measured before skirt Surface Treatment. To
Determine "Bore" to Diameter, add wall clearance of +0.04mm (0.00157") to
maximum Bore Size.