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- Description
- Fitment
- Warranty and Refund
- Reviews
Keep your diesel exhaust fluid system sealed and functioning properly with the Motorad DEF102 filler cap. Built to meet or exceed OEM specifications, this cap is designed for a secure, optimum fit on the filler neck, helping prevent DEF from leaking or spilling during operation and fill-ups. A properly sealed DEF system supports accurate emissions control and helps keep pollutants out of the environment. The cap features a twist-lock, cam-on design with a male coarse thread connection and a 1.30 in thread diameter for confident, secure installation. Constructed from durable plastic and rubber components, this replacement cap is a straightforward way to restore your diesel emissions fluid system to proper working condition. Compatible with a wide range of 2010-2021 Chevrolet and GMC diesel trucks and vans, including Silverado, Sierra, Express, and Savana models equipped with 6.6L Duramax and 2.8L Duramax engines.
Features
- Twist-lock cam-on design delivers a secure, confident seal to help stop DEF leaks and spills.
- Engineered to meet or exceed OEM specifications for reliable replacement performance.
- Designed for optimum fit, helping restore proper operation to your DEF filler neck system.
- Male coarse-thread connection with 1.30 in thread diameter ensures proper filler neck engagement.
- Durable plastic and rubber construction suited for everyday DEF filling and capping duty.
Application Summary
2010-2016 Chevrolet Express 2500 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL2010-2016 Chevrolet Express 3500 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL
2010-2016 Chevrolet Express 4500 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL
2010-2016 GMC Savana 2500 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL
2010-2016 GMC Savana 3500 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL
2010-2016 GMC Savana 4500 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL
2010-2019 Chevrolet Silverado 2500 HD 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL
2010-2019 Chevrolet Silverado 3500 HD 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL
2010-2019 GMC Sierra 2500 HD 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL
2010-2019 GMC Sierra 3500 HD 6.6L 6599CC 403CID V8 OHV 32 Valve Turbocharged DIESEL
2017-2021 Chevrolet Express 2500 2.8L -CC 171CID L4 DOHC 16 Valve Turbocharged DIESEL
2017-2021 Chevrolet Express 3500 2.8L -CC 171CID L4 DOHC 16 Valve Turbocharged DIESEL
2017-2021 GMC Savana 2500 2.8L -CC 171CID L4 DOHC 16 Valve Turbocharged DIESEL
2017-2021 GMC Savana 3500 2.8L -CC 171CID L4 DOHC 16 Valve Turbocharged DIESEL
Specifications
- Brand: Motorad
- Part Number: DEF102
- Part Type: Diesel Exhaust Fluid (DEF) Filler Cap
- UPC: 055644961026
- GTIN: 00055644961026
- Item Dimensions: 3.0000 x 3.0000 x 3.2500 IN
- Package Dimensions: 3.0000 x 3.0000 x 3.2500 IN
- Package Weight: 0.0900 PG
- Package Quantity: 1 EA
- Material: Plastic, Rubber
- Color: Blue
- Inside Diameter: 1.09
- Inside Diameter: 27.69
- Attachment Type: Cam-On
- Cap Depth: 0.89
- Cap Depth: 22.61
- Universal Or Specific Fit: Specific
- Grade Type: OEM
Interchange
- General Motors: 22753134
- General Motors: 20815650
- CST: DEF102
- Parts Master: DEF102
- Motorad: DEF102
- FVP Caps & Thermostats: DEF102
- Pronto: DEF102
- Federated: DEF102
- Mighty Distributing System: DEF102
- Dorman: 904-5601CD
- Dorman: 904-5601
- Canadian Tire: DEF102
- Chevrolet: 22753134
- Duralast: DEF102
- ACDelco: 12D01
- Duralast: DEF102
- Worldparts: 9DEF102
- Stant: 10881
- Pep Boys: DEF102
- Balkamp: 703-1961
Warranty
- Warranty Duration: 12 Months
Returns
30-Day Money-Back Guarantee
We want you to be completely satisfied with your purchase! If you are not happy for any reason, you may return the item within 30 days for a refund, minus shipping fees, provided that: The part is brand new, uninstalled, and undamaged in any way.
To initiate a return, please contact us or email support@mizumoauto.com for a Return Authorization Number (RMA) and the return shipping address. Returns without an RMA number will be refused and returned to you at your expense.
Return Requirements:
- Items must be securely packed in the original manufacturer's packaging.
- All original materials must be included, such as hardware, manuals, protective caps, wrapping, and instructions.
- You must obtain and retain the tracking number for your return.
Non-Returnable Items:
- Piston rings, main bearings, and rod bearings are non-returnable if the manufacturer’s seal or shrink-wrapped plastic has been opened. No exceptions—this ensures the integrity of the parts you receive.
We are not responsible for lost or damaged returns. If your return is lost or damaged during shipping, a refund cannot be issued, as the item cannot be resold or returned to the supplier. Please file a claim directly with your shipping carrier for reimbursement.
Refunds are processed within 1-2 business days after we receive and inspect the returned item. Please allow this processing time before inquiring about your refund status.
Warranty
Mizumo Auto provides a 90-day Limited Warranty against defects in workmanship and materials under normal service conditions, effective from the original delivery date.
This warranty is non-transferable and applies only to the original purchaser. Coverage is limited to the replacement or refund of defective products.
Exclusions:
The warranty does not cover labor costs, damage resulting from accidents, misuse, alterations, or unauthorized modifications, as well as additional expenses such as towing, fluids, oils, car rentals, and any other parts not included in the original purchase.
Warranty Claims Process:
- All warranty claims must be pre-authorized and returned prepaid to Mizumo Auto for inspection and approval.
- No exchanges will be made for products that have been damaged, misused, or improperly installed. We strongly recommend professional installation.
- The buyer assumes all risk of damage resulting from improper installation.
All disputes related to transactions shall be resolved by a court of competent jurisdiction in Los Angeles County, California.
Shipping
We offer Free UPS Ground or USPS Ground Advantage shipping within the continental U.S. (48 states).
Shipping to Other Locations:
A delivery surcharge applies to shipments to: Alaska, Hawaii, Puerto Rico, U.S. territories, APO/FPO addresses, Canada, and international destinations.
Order Processing & Tracking:
- Orders are shipped Monday through Friday, excluding holidays.
- Orders placed before 3:00 PM PST will ship the same day, unless unexpected delays occur.
- A tracking number will be emailed within one business day after shipping.
If you do not receive a tracking number, please:
- Check your spam/junk folder.
- If it's not there, contact us via phone or eBay message for assistance.
International Orders:
Import duties, taxes, and brokerage fees are not included in the shipping fee. Please check with your shipping carrier and local customs office regarding any applicable fees before placing your order.









