Cooling > Radiator Cap
Nuke Radiator Cap | SCR NUK01033
Part reference SCR NUK01033
- Free tracked delivery within New Zealand
- Typically arriving in 3 to 10 working days
- Prices include GST (15%)
- Fitment support: send your make, model and year
Review the product notes or send us your vehicle and replacement-part details before ordering.
Product details
You're buying from Kauri Auto Parts: new aftermarket and OE-replacement parts, dispatched from within New Zealand, with GST already in the price.
Thermal control for street, track, and motorsports - Type-A "Mini" Radiator Caps from Nuke Performance for 32mm radiator necks - 1.1 / 1.3 / 1.5 / 2.0 BAR.
Nuke Performance radiator caps are developed for demanding applications where cooling system stability is critical. Available in 1.1, 1.3, 1.5, and 2.0 BAR, each cap is precision-calibrated to maintain consistent system pressure and increase the boling margin of your coolant.
Type-A "Mini" Radiator Caps, for 32mm radiator necks Compatible with a wide range of OEM applications Stainless steel internals and body Silicon sealing is superior to OEM caps
By increasing system pressure, the coolant's boiling point rises, reducing the risk of localized boiling and maintaining heat transfer under load. Perfect match for the different available Coolant Expansion Tanks from Nuke Performance, as well as OEM replacement and custom installations.
Available in different pressure ratings, ranging from 1.1 BAR to 2.0 BAR (16.0 PSI to 29.0 PSI). All with stainless steel internals and silicon sealing. The Type-A Radiator Caps from Nuke Performance are manufactured from stainless steel for long-lasting performance and durability. The seal is made of silicon instead of natural rubber found in OEM radiator caps, ensuring a greater life span and durability.
The stated pressure rating represents the nominal release pressure and operates within a defined tolerance range. The illustration above shows the intended operating range for each Nuke Performance radiator cap.
Cooling system pressure directly affects the coolant boiling point. Always select the lowest pressure cap that provides sufficient boiling margin for your application, as higher pressure increases thermal stability but also places greater stress on system components.
Higher pressure raises the boiling point, reduces the risk of localized vapor formation, and improves thermal stability under high load. However, increased pressure also places greater stress on hoses, radiator, expansion tank, and seals. Available in several different pressure ratings, make sure to select the preferred one when placing an order.
Also compatible with select European vehicles and motorsport builds equipped with a Type-A (32mm) radiator neck. Always verify radiator neck specification before installation.
Confirm this part number against your vehicle's existing part before ordering.
| Brand | Nuke |
|---|---|
| Part No. | SCR NUK01033 |
| Condition | New |
| Part Type | Radiator Cap |
| Available ratings | 1.10 / 1.30 / 1.50 / 2.00 BAR ; 16.0 / 18.9 / 21.8 / 29.0 PSI |
| - Rated release pressure | 1.1 BAR (16.0 PSI) |
| - Verified opening range | 1.05 - 1.20 BAR (15.23 - 17.40 PSI) |
| Radiator neck type | 32mm radiator neck (Type-A seal) |
| Material valve / cap | Stainless steel |
| Material seal | Silicon |
| Valve diameter | 29.2mm (1.15") |
| Cap diameter min. / max. | 45.5mm (1.79”) / 65.0mm (2.56”) |
| Height valve | 25.4mm (1.00") |
| Height overall | 27.0mm (1.06") |
| Weight | 38.5g (1.35oz) |
| For motorsports use | YES |
| Honda | B-, K-, and H-series |
| Nissan | SR, RB, and VR engines |
| Toyota | Celica, MR2, 1JZ and 2JZ engines |
| Subaru | EJ engines |
| Mazda | Rotary engines, and MX-5 |
| Mitsubishi | 4G63 engines |
- Approximate values. Actual boiling point varies with coolant formulation and system conditions. Cap ratings are gauge pressure.
This listing is identified by part number. Tell us your make, model, year and engine if you'd like it confirmed before you buy. Sourced from New Zealand suppliers. Orders are processed in 1 to 3 working days, and most arrive within 3 to 10 working days of your order — no customs, no international freight. New Zealand consumer law applies to every order, and our refund policy includes 30-day change-of-mind returns. If a part turns up faulty or isn't as described, we'll put it right.
Specifications
- Brand
- Nuke
- Product type
- Cooling > Radiator Cap
- Part reference
- SCR NUK01033
- Title
- Default Title
Vehicle compatibility
Compatibility can vary by model, production date and specification. Review the product notes or send a fitment enquiry before ordering.
Delivery & returns
Free tracked delivery within New Zealand — typically arriving in 3 to 10 working days.
