Honda / Acura K-Series Rear Main Seal Installer Tool – Fits K20 & K24 Engines

Install your rear main (crankshaft) seal correctly the first time with this precision installer tool for Honda/Acura K-series engines. Designed to seat the seal straight and to consistent OEM-style depth, this tool helps prevent leaks, uneven wear, and installation errors.

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Why Choose This Tool

• K-Series Specific Fit: Centers and drives the seal properly on K20 and K24 engines
• OEM-Depth Stop: Ensures even seating depth with no guesswork
• Consistent Results: Helps prevent seal tilt, damage, and leaks
• Proven Design: Used successfully across multiple K-series builds
• Durable Construction: High-strength PLA+ for stiffness and reliability
• Made in the USA

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Engine Compatibility

K20 Series:

• K20A / K20A2 / K20A3 / K20Z1 / K20Z3

K24 Series:

• K24A1 / K24A2 / K24A4 / K24A8
• K24Z1 / K24Z3 / K24Z7
• K24W

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Common Vehicle Applications

(Verify engine before purchase)

Acura:

• RSX / RSX Type-S (2002–2006 – K20)
• TSX (2004–2014 – K24)

Honda:

• Civic Si (2006–2011 K20Z3; 2012–2015 K24Z7)
• Civic Type R EP3 / FD2 (K20)
• Accord 2.4L (2003–2012 K24A; 2013–2017 K24W)
• CR-V (2002–2006 K20; 2007–2016 K24)
• Element (2003–2011 K24)

Not compatible with:

• V6 J-series engines (Odyssey, Pilot, Accord V6, etc.)

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What’s Included

• 1 × Rear Main Seal Installer Tool

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How to Use

1. Remove old seal and clean the bore
2. Lightly oil the new seal
3. Position the seal and place the tool over it
4. Start OEM bolts by hand
5. Tap evenly with a rubber mallet or draw down evenly with bolts
6. Seat to depth stop and inspect

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Notes

• 3D printed specialty tool — minor surface lines are normal
• Designed for installation use only
• Color may vary
• Contact us if you need a variation for a specific K-series housing

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Why Use a Seal Installer Tool

Rear main seal installation requires proper alignment and depth. This tool ensures a straight, even install, helping avoid leaks and costly rework.