2Bros Parts

REAR SPROCKET STEEL 40 [JTR1857.40] 520

$15.51

4.1 Trustpilot 99.9% positive on eBay

Delivery to United States 5–8 business days

Spread the cost with Klarna

1

REAR SPROCKET STEEL 40 Teeth [JTR1857.40] 520. Part No. SR437-40.S.DR. Made with C45 steel high carbon steel. Heat-treated and finished by hand. Sandblasted to reduce surface tension, satin-silk finish or Power coated Black. Meet or exceed the highest-quality compound mod. standards set by the motorcycle industry. Cross reference numbers ONLY. AT-26540.

Specifications
SKU
SR437-40.S.DR
Brand
Dirt Racing
Availability
In Stock (7)

Fitments (57)

MakeModelYear
YAMAHAYFM RAPTOR 2502008
YAMAHAYFM RAPTOR 2502009
YAMAHAYFM RAPTOR 2502010
YAMAHAYFM RAPTOR 2502011
YAMAHAYFM RAPTOR 2502012
YAMAHAYFM RAPTOR 2502013
YAMAHAYFM RAPTOR 3502004
YAMAHAYFM RAPTOR 3502005
YAMAHAYFM RAPTOR 3502006
YAMAHAYFM RAPTOR 3502007
YAMAHAYFM RAPTOR 3502008
YAMAHAYFM RAPTOR 3502009
YAMAHAYFM RAPTOR 3502010
YAMAHAYFM RAPTOR 3502011
YAMAHAYFM RAPTOR 3502012
YAMAHAYFM RAPTOR 3502013
YAMAHAYFM RAPTOR R 7002006
YAMAHAYFM RAPTOR R 7002007
YAMAHAYFM RAPTOR R 7002008
YAMAHAYFM RAPTOR R 7002009
YAMAHAYFM RAPTOR R 7002010
YAMAHAYFM RAPTOR R 7002011
YAMAHAYFM RAPTOR R 7002012
YAMAHAYFM RAPTOR R 7002013
YAMAHAYFM RAPTOR R 7002014
YAMAHAYFM RAPTOR R 7002015
YAMAHAYFM RAPTOR R 7002016
YAMAHAYFM RAPTOR R 7002017
YAMAHAYFM RAPTOR R 7002018
YAMAHAYFM RAPTOR R 7002019
YAMAHAYFM RAPTOR R 7002020
YAMAHAYFM WARRIOR 3501987
YAMAHAYFM WARRIOR 3501988
YAMAHAYFZ 4502004
YAMAHAYFZ 4502005
YAMAHAYFZ 4502006
YAMAHAYFZ 4502007
YAMAHAYFZ 4502008
YAMAHAYFZ 4502009
YAMAHAYFZ 4502010
YAMAHAYFZ 4502011
YAMAHAYFZ 4502012
YAMAHAYFZ 4502013
YAMAHAYFZ BANSHEE 3501987
YAMAHAYFZ BANSHEE 3501988
YAMAHAYFZ R 4502009
YAMAHAYFZ R 4502010
YAMAHAYFZ R 4502011
YAMAHAYFZ R 4502012
YAMAHAYFZ R 4502013
YAMAHAYFZ R 4502014
YAMAHAYFZ R 4502015
YAMAHAYFZ R 4502016
YAMAHAYFZ R 4502017
YAMAHAYFZ R 4502018
YAMAHAYFZ R 4502019
YAMAHAYFZ R 4502020
General Product Group
Chain & Sprockets
General Product Type
Sprockets & Components (Rear)
Variant Id
278241
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Dirt Racing Steel Rear Sprocket 40 Teeth 520 Pitch

Upgrade your vehicle's performance with this high-quality steel rear sprocket from Dirt Racing. Engineered for maximum strength and minimal weight, this sprocket is a crucial component for any serious rider.

Key Features:

  • Material: Constructed from C45 high carbon steel for exceptional durability.
  • Tooth Count: Features 40 teeth, providing a specific gear ratio for optimized performance.
  • Pitch: Designed with a 520 pitch chain compatibility.
  • Finish: Sandblasted for reduced surface tension, offering a satin-silk finish.
  • Craftsmanship: Each sprocket is meticulously heat-treated and hand-finished to ensure superior quality.
  • Industry Standards: Meets or exceeds the highest quality compound modification standards set by the motorcycle industry.
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

Call us+44 330 133 3748
Email us[email protected]

Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.

Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

You might also like

RELATED PARTS

FRONT SPROCKET CIRCLIP PK/10, D1400-0022 / EXT22

FRONT SPROCKET CIRCLIP PK/10, D1400-0022 / EXT22

$3.87
DRIVE CHAIN RIVET LINK X-RING 530X1R BLACK JTCL530X1RR

DRIVE CHAIN RIVET LINK X-RING 530X1R BLACK JTCL530X1RR

$3.31
DID 420D CHAIN 120L BLACK (RJ) 3010260, DID420D120

DID 420D CHAIN 120L BLACK (RJ) 3010260, DID420D120

$19.74

Trade pricing available

Buying parts for your business? Apply for a 2BrosParts trade account.

Apply for Trade
1