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- Description
- Fitment
- Warranty and Refund
- Reviews
The Motorad 3130 is a purpose-built tester adapter designed to connect with the MT-300 cooling system pressure tester, giving technicians and shop owners a reliable way to verify that a vehicle's cooling system is holding proper pressure. Built from metal with a screw-on connection, this black adapter features a 2.23 in neck diameter, 1.60 in inside diameter at one end, and a 2.10 in outside diameter at the other, matching the sizing needed for many older Volkswagen and Audi applications spanning 1990-2008. Whether you're diagnosing a stubborn coolant leak or performing routine pressure checks on Jetta, Golf, Passat, Corrado, EuroVan, Vanagon, Cabrio, Beetle, or Audi 90 models, this adapter helps ensure your MT-300 tester makes a secure, accurate connection. A practical addition to any cooling system diagnostic kit for shops servicing these classic VW/Audi platforms.
Features
- Connects directly to MT-300 pressure testers for accurate cooling system diagnostics
- Metal construction supports repeated shop use during pressure testing tasks
- Screw-on design creates a secure connection during pressure test procedures
- Sized with 2.23 in neck diameter to match specific VW/Audi cooling necks
- Covers a wide range of 1990-2008 Volkswagen and Audi cooling system tests
Application Summary
1990-1991 Volkswagen Vanagon 2.1L 2109CC -CID H4 OHV 8 Valve Naturally Aspirated GAS1990-1992 Volkswagen Corrado 1.8L 1781CC -CID L4 SOHC 8 Valve Supercharged GAS
1990-1992 Volkswagen Golf 1.8L 1781CC -CID L4 SOHC 8 Valve Naturally Aspirated GAS
1990-1992 Volkswagen Jetta 1.8L 1781CC -CID L4 SOHC 8 Valve Naturally Aspirated GAS
1990-1993 Volkswagen Passat 2.0L 1984CC 121CID L4 DOHC 16 Valve Naturally Aspirated GAS
1992-1993 Volkswagen Transporter 2.5L 2459CC 150CID L5 SOHC 10 Valve Naturally Aspirated GAS
1992-1996 Volkswagen EuroVan 2.5L 2459CC 150CID L5 SOHC 10 Valve Naturally Aspirated GAS
1993-1994 Volkswagen Corrado 2.8L 2771CC -CID V6 SOHC 12 Valve Naturally Aspirated GAS
1993-1997, 1999 Volkswagen Jetta 2.0L 1984CC 121CID L4 SOHC 8 Valve Naturally Aspirated GAS
1993-1999 Volkswagen Golf 2.0L 1984CC 121CID L4 SOHC 8 Valve Naturally Aspirated GAS
1994 Audi 90 2.8L 2771CC -CID V6 SOHC 12 Valve Naturally Aspirated GAS
1994, 1997 Volkswagen Passat 2.8L 2771CC -CID V6 SOHC 12 Valve Naturally Aspirated GAS
1995-1996 Volkswagen Passat 2.0L 1984CC 121CID L4 SOHC 8 Valve Naturally Aspirated GAS
1995-2001, 2008-2009 Volkswagen Derby 1.8L 1781CC -CID L4 SOHC 8 Valve Naturally Aspirated GAS
1995-2002 Volkswagen Cabrio 2.0L 1984CC 121CID L4 SOHC 8 Valve Naturally Aspirated GAS
1997, 1999-2000 Volkswagen EuroVan 2.8L 2771CC -CID V6 SOHC 12 Valve Naturally Aspirated GAS
1998 Volkswagen Beetle 2.0L 1984CC 121CID L4 SOHC 8 Valve Naturally Aspirated GAS
1998 Volkswagen Jetta 1.9L 1896CC 116CID L4 SOHC 8 Valve Turbocharged DIESEL
1998-2009 Volkswagen Pointer 1.8L 1781CC -CID L4 SOHC 8 Valve Naturally Aspirated GAS
1998-2010 Volkswagen Pointer Truck 1.8L 1781CC -CID L4 SOHC 8 Valve Naturally Aspirated GAS
1999 Volkswagen Golf 1.9L 1896CC 116CID L4 SOHC 8 Valve Turbocharged DIESEL
2001-2003 Volkswagen EuroVan 2.8L 2771CC -CID V6 DOHC 24 Valve Naturally Aspirated GAS
2004 Volkswagen Van 1.8L 1781CC -CID L4 SOHC 8 Valve Naturally Aspirated GAS
Specifications
- Brand: Motorad
- Part Number: 3130
- Part Type: Cooling System Adapter
- UPC: 055644031309
- GTIN: 00055644031309
- Item Dimensions: 3.0000 x 3.0000 x 3.2500 IN
- Package Dimensions: 3.0000 x 3.0000 x 3.2500 IN
- Package Weight: 0.7000 PG
- Package Quantity: 1 EA
- Material: Metal
- Carrying Case Included: No
- End 2 Inside Diameter: 1.88
- End 2 Inside Diameter: 47.75
- End 1 Outside Diameter: 2.23
- End 1 Outside Diameter: 56.64
- Attachment Type: Screw-On
- Height: 2.18
Interchange
- CST: 9130
- Parts Master: 15130
- Motorad: 3130
- FVP Caps & Thermostats: 3130
- Murray Temperature Control: 9130
- Service Champ: 12028
- Parts Plus: P9130
- Duralast: 9130
- Worldparts: 93130
- Stant: 12028
- Pep Boys: 3130
- Balkamp: 700-4046
- Carquest Premium Caps and Stats: 12028
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.









