MARTIN 40B12

Marsoni

M251S

$149.00

Get it in 3 business days with 1 day shipping. Friday, May 29

MARTIN 40B1240B12 ROLLER CHAIN SPROCKET STANDARD STOCK NO. 40 CHAIN 1 2 INCH PITCH TYPE B PLAIN BORE 1 2 INCH BORE DIAMETER 12 TEETH 7 8 INCH LENGTH THRU BORE 2. 17 INCH OUTER DIAMETER 1 9 16 INCH HUB DIAMETER SINGLE STRAND HUB RECESSED FOR CHAIN STEEL

Easy Shipping

Quick Dispatch:

Your MARTIN 40B12 orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your MARTIN 40B12 ships.

Need Help?
Questions about MARTIN 40B12, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for MARTIN 40B12 in your area.

Get Shipping Estimates

Country Zip/Postal Code

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

Very satisfied with this air filter! It fits perfectly and was easy to install without any hassle. The filtration performance is impressive—helping to keep the air inside the car fresh and clean. The simple packaging is eco-friendly, which I appreciate. Reliable quality and reasonable price make this a great choice for regular replacement. Highly recommended!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 19, 2026

Verified Purchase

APM707916

Battle Creek, US

★★★★★ 5

Perfect replacements 👍🏼

Size: CF11182&CA12051, Size: CF11182&CA12051

Perfect fit at an affordable price. Engine air filter is good quality, but the cabin air filter is way better than the stock one. They even include instructions.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 7, 2026

Verified Purchase

Diana

Phoenix, US

★★★★★ 5

Worth every penny!

Size: CF11182&CA12051

I have a 2020 Honda Civic Sport, and these filters fit perfectly. I was hesitant in purchasing because it said that its a frequent returned due to compability. Installation was a breeze after watching a quick YouTube tutorial, although it does come with instructions/manual. They look solid and durable. They came individually wrapped. I’m hoping they help with the odor and fogging issues caused by the old filters. Honda service wanted to charge me $63 for the cabin filter alone, so this was definitely a much better deal. I would purchase again in the future. The item ID that I purchase is CF11182&CA12051.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 29, 2026