Related Products
Details
- Brand:
- SKU:
MT300
- GTIN: 00055644003009
- UPC: 055644003009
- Description:
Professional cooling system and radiator/coolant-cap pressure tester used to diagnose leaks and verify system/cap holding pressure. Features a large color‑coded gauge (psi and kPa) up to 30 psi, an integrated pressure‑release bar, and a selection of common adapters. Includes hose and carrying case; constructed of metal, plastic, and rubber.
- Condition: New
- Warranty:
Engine Coolant System Pressure Tester - Motorad (MT300)
- Sale Price: $125.99
Pricing is valid online only and may vary in your local store
Vehicle Fitment
Vehicle Fitment
| Year | Make | Model | Body & Trim | Engine & Transmission |
|---|
Interchange
Interchange
Policies
Policies
Product Reviews
Brand
Store
aftermarket
AutoNation Aftermarket Parts FAQ & Buying Guide | AutoNation Parts
What is the AutoNation Aftermarket Store?
The AutoNation Aftermarket Store is your trusted source for high-quality aftermarket auto parts and accessories. We offer over 275+ leading brands, delivering reliable components for nearly every make and model on the road today.
What types of aftermarket parts do you offer?
Our inventory includes everything from performance upgrades to essential replacement parts such as brakes, filters, suspension components, lighting, and electronics. Whether you're maintaining or upgrading your vehicle, we have you covered.
How do I find the right part for my vehicle?
Use our Search by Vehicle tool to quickly match parts to your exact make, model, and year. This ensures proper fitment and optimal performance.
Are aftermarket parts reliable?
Yes. We carefully curate our catalog with trusted aftermarket brands known for durability and performance. Many aftermarket parts meet or exceed OEM standards while offering better value.
How fast is shipping?
We offer fast and reliable delivery nationwide. Most orders are processed quickly so you can get back on the road without delays.
Do you offer discounts on aftermarket parts?
Yes. Combine essential maintenance items and apply promo code MAINT5SAVE at checkout when your order reaches $75+ to save on your purchase.
Can I install these parts myself?
Many of our products are perfect for DIY enthusiasts, while others may require professional installation. Always review product details and consult a technician if needed.
What if I order the wrong part?
If a part doesn’t fit, you can review our Returns Policy for easy return or exchange options. We recommend verifying compatibility before purchase.
Why shop with AutoNation Aftermarket?
AutoNation is one of America’s most trusted automotive retailers, with 300+ locations nationwide. We combine competitive pricing, quality assurance, and expert selection to deliver unmatched value.
Do aftermarket parts affect vehicle performance?
High-quality aftermarket parts can enhance performance, efficiency, and durability. Choosing the right components ensures your vehicle operates at its best.
Key Product Information
Additional Information
| FITMENT | Universal diagnostic tool for most passenger vehicles and light trucks with standard radiator necks and coolant caps. Tests cooling systems and caps up to 30 psi; additional adapter sets are available for specific makes/types as needed. |
| SYMPTOMS | Use this tester to confirm causes of overheating, coolant loss, or sweet coolant odor; to check for leaks at hoses, radiator, heater core, water pump, or head‑gasket related pressure rise; and to verify a suspect coolant cap that cannot hold rated pressure. |
| TROUBLESHOOTING | Rapid pressure drop indicates an external leak; a vibrating gauge needle with engine running can indicate combustion gases entering the cooling system (possible head‑gasket issue). Recheck cap gaskets for impressions that may affect sealing; lightly wet new cap gaskets to aid sealing. |
| INSTALLATION | |
| MAINTENANCE | |
| GENERAL_NOTES | For cap testing: remove cap when cool; select correct adapter; attach to tester; pump until the cap opens at its rated pressure and verify it holds within the specified color band for ~30 seconds. For system testing: fill to proper level, clean filler neck, install tester (with adapter if required), pump to the vehicle’s specified pressure without exceeding 30 psi, and observe the gauge for pressure drop to locate leaks. Always use the pressure‑release before removal. Gauge reads in psi and kPa. Kit includes common adapters; some vehicles require brand‑specific adapters (e.g., VW/Audi, BMW threaded necks, various GM/Ford styles). |
| FAULT_CODES | No direct diagnostic trouble codes apply to this tool; it is used to help diagnose cooling‑system faults that may accompany drivability or overheating complaints. |
| REPLACEMENTS | Stant 12270 NAPA 700-3025 Gates 31367 AutoZone 9300 O’Reilly 9300 Advance 12270 AETM 12270 Filpac/PurePro 12270ST Mighty 9300 Pep Boys MT300 |
| WEIGHT | 3.72 lb |
| DIMENSIONS | 13.25 x 8.88 x 3.75 inches |