Pay in 4 interest-free payments
Polaris Trail Boss 350L Big Boss Radiator Pressure Cap
Description:
Maintains correct cooling system pressure for Polaris Trail Boss 350L and Big Boss, helping prevent overheating and coolant loss. Easy to install as a direct replacement cap for standard radiators.
Features:
- Designed for Polaris Trail Boss 350L/Big Boss
- Maintains proper pressure to prevent overheating
- Direct replacement, quick install
Includes:
- 1 x Radiator Pressure Cap
Fits Models:
Polaris Trail Boss 350L, Big Boss
Model Years:
(n/a)
Submodels:
Trail Boss, Big Boss
Engine Options:
350L engine
Keywords:
radiator pressure cap, Polaris, Trail Boss, Big Boss, ATV, coolant cap, engine protection
Radiator Pressure Cap for Polaris Trail Boss 350L Big Boss
Shipping Information
Most orders land in 5–12 business days. We'll keep you updated at every step of the journey.
The Kren Bits journey:
- Order received — Day 0
- With fulfilment — Day 1–2
- Heading to courier — Day 2–4
- Shipped — Day 3–7
- Almost there — Day 5–10
- Delivered — Day 5–14
Where your part ships from:
Your order ships from the closest warehouse with available stock across our six-warehouse network — NZ, AU, TH, UK, US, and CN.
We email you at every real milestone — order received, with fulfilment, heading to courier, shipped, almost there, delivered. No chasing, no vague waits.
For more details, visit our Track Your Order page.
Product Enquiry
Got a question about this product? Need to check fitment for your vehicle? Fill in the form below and we'll get back to you within 24 hours.