🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
🔧 10% OFF with code SAVE10
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Free UK delivery on every order. Orders are processed within 1–3 working days and delivered across the UK in 2–5 working days by tracked service. No minimum spend.
We currently deliver to United Kingdom addresses only. Delivery times are estimates and can be longer for the Highlands, Islands and Northern Ireland or during busy periods. See our Shipping Policy for full details.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Upgrade your GM transmission service with the Bonbo Turbine & Stator Shaft Teflon Seal Installer/Resizer Kit. This two-piece kit, featuring the 1503 Stator Shaft Teflon Seal Installer/Resizer and the J-36418-C Turbine Shaft Teflon Seal Installer/Resizer, is designed to help you install seals cleanly and consistently on popular GM automatics. Compatible with 700-R4, 4L60, 4L60-E, 4L65E, 4L70E, and 4L70L (1982 and up), this kit aims to reduce seal damage and improve installation confidence in both routine service and more involved rebuilds.
Bonbo combines practical engineering, durable materials, and real-world usability to help automotive technicians and enthusiasts approach seal work with added confidence. The kit’s focus on protection and precision aligns with common service workflows, where careful seal seating matters for long-term performance. While results can vary by application, many users appreciate the clear, controlled installation experience this pair offers.
Bonbo backs this kit with a 1-year warranty and a 30-day return option. If you encounter issues, contact the support team for assistance and guidance, with a typical response within 24 hours.
Q: Which GM transmissions are supported by the Bonbo J-36418-C & 1503 kit?
A: Safer seal installation for GM 700-R4, 4L60, 4L60-E, 4L65E, 4L70E, and 4L70L (1982+).
Q: What warranty and return options come with this kit?
A: 30-day returns and a 1-year warranty with responsive customer support.
Free tracked delivery to any UK address on every order, with no minimum spend. Orders are processed within 1–3 working days and standard UK delivery then takes 2–5 working days; remote areas can take a little longer. You receive a tracking link by email as soon as your order is dispatched.
Please inspect your order on arrival. If anything is wrong, faulty or damaged, email plentytorqueauto@gmail.com with your order number and photos and we will put it right. Changed your mind? Email us before sending anything back and we will confirm the return address and instructions. Hazardous and flammable items cannot be returned. Full details are in our Refund Policy and Shipping Policy.
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