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Compression Tester

$ 87.49

In stock

Compression Tester

Part #: 57-8840

Motion Pro quality guaranteed.

Available for ship to store.


Free Shipping on New Part orders over $100

Compression Tester

Product Specifications

Weight 1.18 lbs
Dimensions 13.3 × 6.69 × 1.96 in
Part Number

57-8840

MPN

08-0651

Brand

Motion Pro

MAP Policy

true

Country of Origin

China (Mainland)

Product Description

Compression Tester is available now from Knobtown Cycle, your Kansas City motorcycle parts specialists.

Key Features

  • Redesigned and Improved billet gauge manifold with integrated pressure release valve
  • Easy to read precision 0-300psi analog gauge with protective rubber boot
  • Hose and adapters included for 10 mm, 12 mm and 14mm spark plugs
  • Integrated quick disconnect fitting for easy hose installation and removal
  • Nylon storage pouch

Product Specifications

  • Part Number: 57-8840
  • Brand: Motion Pro
  • Weight: 1.18 lbs

Available at Knobtown Cycle

Shop online or visit our Kansas City showroom. Fast shipping available on all orders! Free Ship to Store!

Part Locations

Location Available
Ashley (IN) 4
Elizabethtown (PA) 0
Boise (ID) 0
Midway (GA) 0
Fresno (CA) 0
Jessup (MD) 0
Midlothian (VA) 0
National Total 4

Stock levels last updated: March 8, 2026 5:04 PM

Professional Installation Available

Knobtown Cycle offers professional installation services. Contact us via a service request to learn more.


Thank you for Shopping at Knobtown Cycle!

When you shop with us, you’re not just buying motorcycle parts — you’re supporting a small, family-run business rooted right here in the heartland of America. Every order helps us keep riders on the road and fuels our passion for serving the motorcycle community.
From all of us at Knobtown Cycle, thank you for choosing local and riding with us.

Kit Fox – Owner Knobtown Cycle

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Need help with installation?  Our Service Department based in Kansas City, Missouri is here for you.  Fill out a Service Request and lets get you rolling!