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Mastiff 8021 Chain Lock

$ 134.95

In stock

Mastiff 8021 Chain Lock

Part #: 57-9618

Onguard quality guaranteed.

Available for ship to store.


Free Shipping on New Part orders over $100

Mastiff 8021 Chain Lock

Product Specifications

Weight 10.201 lbs
Dimensions 17.5 × 8.5 × 6.5 in
Part Number

57-9618

MPN

45008021

Brand

Onguard

UPC

768661280215

MAP Policy

true

Country of Origin

China (Mainland)

Product Description

Mastiff 8021 Chain Lock is available now from Knobtown Cycle, your Kansas City motorcycle parts specialists.

Key Features

  • 6′ x 10mm (0.39″) titanium reinforced hardened square link chain mated to an integrated X2P Dual Lock
  • Double rubber cover for better protection against bumps and hits. 110cm x 10mm (3.57′ x 0.39″)
  • 5 laser cut keys (1 micro-light and 4 extra grip keys) Micro-light key projects a bright white beam

Product Specifications

  • Part Number: 57-9618
  • Brand: Onguard
  • Weight: 10.201 lbs
  • UPC: 768661280215

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) 0
Elizabethtown (PA) 0
Boise (ID) 0
Midway (GA) 0
Fresno (CA) 0
Jessup (MD) 0
Midlothian (VA) 0
National Total 0

Stock levels last updated: March 20, 2026 6:39 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!