The Mastercool 43306 Heavy Duty Cooling System Pressure Test and Refill Kit is a professional-grade solution designed to eliminate the complications commonly associated with unreliable rubber plugs or bladders during cooling system service. Engineered for use on a wide range of heavy duty commercial vehicles, this kit leverages shop air to maintain continuous, consistent pressure throughout both testing and refilling operations. The result is faster setup, reduced service time, and more accurate, dependable test results. Built to meet the demands of professional technicians working on fleet and heavy duty equipment, this kit delivers performance and reliability in a compact, organized package.
Features
Uses shop air to maintain continual pressure to the cooling system during testing and refilling, ensuring consistent and reliable results
4 quick disconnect vacuum attachments enable rapid refilling of the cooling system and effectively eradicate airlocks
Compatible with Freightliner, International, Kenworth, Peterbilt, Mack, Volvo, GMC, and Sterling cooling systems
Saves setup time compared to traditional rubber plug or bladder methods, streamlining the service process
All components store neatly in a durable molded plastic carrying case for organized transport and storage
Specifications
Brand: Mastercool
Model: 43306
Application: Heavy duty vehicle cooling systems
Compatible Vehicles: Freightliner, International, Kenworth, Peterbilt, Mack, Volvo, GMC, Sterling
Air Source: Shop air
Case Type: Molded plastic carrying case
Includes
Heavy duty vehicle adapters (color-coded, multiple sizes)
Pressure test regulator
Vacuum refill attachment with tubing
4 quick disconnect vacuum attachments
Molded plastic carrying case
Shipping
- We will usually ship your order in 1 to 2 business days! Orders purchased before 2:00 pm EST may be shipped the same day.
- Your order must have a subtotal of $199 or more to be eligible for free shipping.
- The delay of your order will depend on your location and from which warehouse your order is shipped from. We will always ship your order from the closest available warehouse. Based on our experience, we estimate the transit time to be between 1 to 3 business days across Canada (excluding NWT, Yukon and Nunavut) and 2 to 5 business days to USA.
- All orders will be shipped from Canada.
- You may pick up your order at one of our warehouses, Monday to Friday, from 8 am to 5 pm. Pickup orders are usually ready within 4 hours.
Returns
We are offering a 30-day money-back guarantee!
If you are not satisfied with your purchase within 30 days of receiving the product, you can ship it back to us for a refund or exchange.
Before returning the item, kindly send us a request using the Self-Serve Return option or contact our customer support team to get your return authorization. You may contact us by email at support@mprtools.com, phone at 1-800-905-0410, or chat through our website. We are available Monday to Friday from 8 am to 5 pm ET.
We want to guarantee your experience with us will be outstanding. Here are just a few of the reasons why mprtools.com is the go-to company to get your tools from:
1-Year Price Match Guarantee
We work very hard to ensure we offer the absolute best prices online. If you find it at a lower price somewhere else within 365 days of purchasing, please message us, and we’ll credit you back the difference right away.
30-Day Money-Back Guarantee
It's our duty to provide superior quality tools you can trust to get the job done. If you're not fully satisfied with your order, you can request a return for a complete reimbursement.
