About
*NOTE* Currently is an order in product from Nuke In Sweden. Takes Roughly 3-4 weeks to order in
Check out the Nuke website to see what else they offer and more info https://www.nukeperformance.com/
Listing is for:
1x Radiator Cap
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
Fits all Nuke Performance Coolant Expansion Tanks
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.
Approximate boiling points :
| Radiator Cap Rating | Only Water | 50/50 Coolant / Water |
| 1.1 BAR (16.0 PSI) | ~121°C (~250°F) | ~129°C (~265°F) |
| 1.3 BAR (18.9 PSI) | ~124°C (~255°F) | ~131°C (~268°F) |
| 1.5 BAR (21.8 PSI) | ~127°C (~261°F) | ~135°C (~275°F) |
| 2.0 BAR (29.0 PSI) | ~134°C (~273°F) | ~142°C (~288°F) |
* Approximate values. Actual boiling point varies with coolant formulation and system conditions. Cap ratings are gauge pressure.
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.
Nuke Performance Type-A Radiator Caps Specifications:
For more information about specifications, contact us directly.
| Available ratings | 1.10 / 1.30 / 1.50 / 2.00 BAR 16.0 / 18.9 / 21.8 / 29.0 PSI |
| Part # 452-01-011 | |
| - Rated release pressure | 1.1 BAR (16.0 PSI) |
| - Verified opening range | 1.05 - 1.20 BAR (15.23 - 17.40 PSI) |
| Part # 452-01-013 | |
| - Rated release pressure | 1.3 BAR (18.9 PSI) |
| - Verified opening range | 1.25 - 1.40 BAR (18.10 - 20.30 PSI) |
| Part # 452-01-015 | |
| - Rated release pressure | 1.5 BAR (21.8 PSI) |
| - Verified opening range | 1.45 - 1.60 BAR (21.03 - 23.10 PSI) |
| Part # 452-01-020 | |
| - Rated release pressure | 2.0 BAR (29.0 PSI) |
| - Verified opening range | 1.90 - 2.10 BAR (27.55 - 30.45 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 |
Nuke Performance Type-A Radiator Caps fitment guide:
Fits all Nuke Performance Coolant expansion tanks, and widely used in Japanese performance engine platforms, including:
| 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 |
Also compatible with select European vehicles and motorsport builds equipped with a Type-A (32mm) radiator neck. Always verify radiator neck specification before installation.
*NOTE* Currently is an order in product from Nuke In Sweden. Takes Roughly 3-4 weeks to order in
Check out the Nuke website to see what else they offer and more info https://www.nukeperformance.com/
Listing is for:
1x Radiator Cap
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
Fits all Nuke Performance Coolant Expansion Tanks
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.
Approximate boiling points :
| Radiator Cap Rating | Only Water | 50/50 Coolant / Water |
| 1.1 BAR (16.0 PSI) | ~121°C (~250°F) | ~129°C (~265°F) |
| 1.3 BAR (18.9 PSI) | ~124°C (~255°F) | ~131°C (~268°F) |
| 1.5 BAR (21.8 PSI) | ~127°C (~261°F) | ~135°C (~275°F) |
| 2.0 BAR (29.0 PSI) | ~134°C (~273°F) | ~142°C (~288°F) |
* Approximate values. Actual boiling point varies with coolant formulation and system conditions. Cap ratings are gauge pressure.
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.
Nuke Performance Type-A Radiator Caps Specifications:
For more information about specifications, contact us directly.
| Available ratings | 1.10 / 1.30 / 1.50 / 2.00 BAR 16.0 / 18.9 / 21.8 / 29.0 PSI |
| Part # 452-01-011 | |
| - Rated release pressure | 1.1 BAR (16.0 PSI) |
| - Verified opening range | 1.05 - 1.20 BAR (15.23 - 17.40 PSI) |
| Part # 452-01-013 | |
| - Rated release pressure | 1.3 BAR (18.9 PSI) |
| - Verified opening range | 1.25 - 1.40 BAR (18.10 - 20.30 PSI) |
| Part # 452-01-015 | |
| - Rated release pressure | 1.5 BAR (21.8 PSI) |
| - Verified opening range | 1.45 - 1.60 BAR (21.03 - 23.10 PSI) |
| Part # 452-01-020 | |
| - Rated release pressure | 2.0 BAR (29.0 PSI) |
| - Verified opening range | 1.90 - 2.10 BAR (27.55 - 30.45 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 |
Nuke Performance Type-A Radiator Caps fitment guide:
Fits all Nuke Performance Coolant expansion tanks, and widely used in Japanese performance engine platforms, including:
| 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 |
Also compatible with select European vehicles and motorsport builds equipped with a Type-A (32mm) radiator neck. Always verify radiator neck specification before installation.
Nuke Type-A Radiator Caps 1.5 Bar (Order in)
- Regular price
- $57.50
- Sale price
- $57.50
- Regular price
-
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Scarles Shipping
We ship throughout New Zealand using NZ Post, NZ Couriers, and Owens Freight, depending on the size and weight of your order.
Shipping rates are calculated at checkout based on your location and the items in your cart.
Delivery timeframes:
Auckland: overnight
Rest of North Island: 1–2 days
South Island: 1–3 days
Bulky and freight items
Some items, including race seats, large exhaust systems, and oversized freight, are shipped via our freight carrier. Rates for these are shown at checkout. For rural South Island delivery on large items, we'll contact you with a quote before dispatch.
International orders
We don't offer automatic international shipping rates. Request a quote, and we'll get back to you with rates and delivery times before you purchase.
Questions?
Head to our FAQs or contact us - we're here to help.
Refunds and Returns Policy
Any issue or fault with a product must be brought to our attention immediately by contacting us at sales@scarles.co.nz before any action is taken. We will then consider the best course of action, which may include you returning the product for inspection.
Once the item is received we will assess the fault. All faulty products will be inspected/tested by either the original manufacturer or a professional. This process time frame varies depending on the product. If the product is deemed a manufacture fault a full refund or replacement can be offered.
We do not cover any additional fitment costs, certification costs, extra parts or freight required to make the item fit or work or any loss of time/wages/business occurred. The product provided even if it is stated as a “direct fit” does not imply no additional parts maybe required.
TRADEME
Please note: Items sold on Trade Me are offered on an ‘as is, where is’ basis. As the factory warranty is no longer valid, we’re unable to provide additional cover on these products.
For more information head over to our FAQs page or email us sales@scarles.co.nz
