Manley Pistons for 2015-2021 WRX FA20
Click on the part number in the table to choose a piston set.
Manley pistons for the 2015-2021 FA20 Subaru WRX. To make it easy, we have them all organized in the table. Simply click on the part number you want and it will take you to your piston. Some pistons are sold as a set of 4 and some are sold individually. Part numbers with a (-4) are the full set of four and (-1) is a single piston.Vehicle Fitment:
2015+ Subaru WRX 2.0L FA20
(* Single Piston Grade A or B *)
Comp Distance = 1.285" |
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| Part Number | Pin | Bore Size mm |
Rod Length mm |
Weight (Grams) |
Included Ring Set | ||
| 632700CA‑1 | Standard .150" | 86mm Grade A | 5.090" | 340 | 46861DT‑1 | ||
| 632700CEA‑1 | Extreme .210" | 86mm Grade A | 5.090" | 340 | 46861DT‑1 | ||
| 632700CB‑1 | Standard .150" | 86mm Grade B | 5.090" | 340 | 46861DT‑1 | ||
| 632700CEB‑1 | Extreme .210" | 86mm Grade B | 5.090" | 340 | 46861DT‑1 | ||
| These pistons feature skirt diameters that correspond to the OEM Grade A or B bores resulting in a piston to wall clearance range of .0023" - .0031". Check the bore grades on the top of your block and order the appropriate quantities of Grade A or B pistons. (Sold as -1 individual pieces, not sets.) | |||||||
(* Set of 4 Pistons *)
Comp Distance = 1.285" |
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| Part Number | Pin | Bore Size mm |
Rod Length mm |
Weight (Grams) |
Included Ring Set | ||
| 632701C‑4 | Standard .150" | 86.10 (+.1mm) | 5.090" | 341 | 46861DT‑4 | ||
| 632701CE‑4 | Extreme .210" | 86.10 (+.1mm) | 5.090" | 341 | 46861DT‑4 | ||
| 632702C‑4 | Standard .150" | 86.25 (+.25mm) | 5.090" | 350 | 46863DT‑4 | ||
| 632702CE‑4 | Extreme .210" | 86.25 (+.25mm) | 5.090" | 350 | 46863DT‑4 | ||
| 632705C‑4 | Standard .150" | 86.5 (+.5mm) | 5.090" | 353 | 46866DT‑4 | ||
| 632705CE‑4 | Extreme .210" | 86.5 (+.5mm) | 5.090" | 353 | 46866DT‑4 | ||
Manley Platinum Series Pistons:
• Moly Coated Skirts
• 2618 high strength material
• Pressure balance groove
• Will accommodate +1mm valve sizes
• Premium Steel top rings with Napier second ring
• Round wire locks included
• Recommended piston clearance: .003" for mildly boosted and .0035" for highly boosted measured .850" from the bottom of the oil ring
Wrist Pin Options:
| Wrist Pin: | Size: | Material: | Pin Part Number: |
| Standard | .150" Wall x 2.250" | Premium Chrome Moly | 42251 |
| Extreme | .210" Wall | 9310 Alloy | 42551 |
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