UZ Swap Radiator (Bundle)

***This item ships in 4 weeks.*** Product Overview USA-made aluminum radiator designed specifically for 1UZ-FE, 2UZ-FE, and 3UZ-FE V8 engine swaps into 1989–1995 Toyota Pickup and 4Runner chassis. This is not a bolt-in part. This radiator requires permanent fabrication work, including cutting the lower radiator support and the radiator support side brackets, plus a minimum 1" body lift. If you're willing to do the work, you get a dual-row, TIG-welded aluminum core built to handle the real thermal demands of a UZ V8 in a platform Toyota never intended it for. The radiator allows you to use your factory hood latch and is compatible with our fan shroud, A/C condenser, and hose kit for those who want a complete cooling system solution rather than a pieced-together assembly. This radiator is built to order and ships in 4–6 weeks. If your recipient chassis is NOT a 1989–1995 Pickup or 4Runner, contact us before ordering. Measurements of your core support opening are required for custom fitment. Key Features & Benefits Handles Real V8 Heat: Dual-row core with 1" diameter tubes delivers significantly more cooling capacity than any factory Toyota radiator — essential for a 4.0–4.7L V8 generating the heat load these engines produce in a compact chassis. TIG-Welded, No Epoxy: Tanks are fully TIG-welded aluminum — no epoxy bonding that can crack, delaminate, or fail under sustained high-temperature conditions on trails or in slow-moving beach traffic. Modular Cooling System Integration: Order the radiator standalone or add the NWT shroud, 16" electric fan, thermostatic controller, upper and lower hoses, and A/C condenser for a complete, purpose-built UZ cooling system. 5-Year Warranty: Backed by a 5-year warranty — a level of confidence you won't find on generic eBay aluminum radiators assembled overseas. Technical Specifications Part Type: Aluminum Performance Radiator — UZ V8 Swap Application Engine Compatibility: 1UZ-FE 4.0L V8, 2UZ-FE 4.7L V8, 3UZ-FE 4.3L V8 Core Construction: Dual-row, 1" diameter aluminum tubes Tank Construction: TIG-welded aluminum (no epoxy) Mounting: Pre-installed nutserts Manufacture: Made and machined in the USA Warranty: 5 years Lead Time: Built to order — ships in 4–6 weeks Compatible Cooling System Add-ons: NWT shroud, 16" electric fan, thermostatic fan controller & harness, upper radiator hose, lower radiator hose, full-frame A/C condenser (14×20") ⚠ Fabrication Requirements — Read Before Ordering This radiator is not plug-and-play. Installation requires the following permanent chassis modifications: Cut the lower radiator support across the bottom to clear the radiator core Cut the radiator support side brackets to achieve proper core width clearance Minimum 1" body lift required for adequate hood clearance and proper radiator positioning These are irreversible cuts. If you are not prepared to perform chassis fabrication, this radiator is not the right product for your build. If your chassis is a non-standard application (not 1989–1995 Pickup or 4Runner), contact North West Toys with your core support measurements before ordering. Fitment Year Model Engine (Swap) 1989–1995 Toyota Pickup (2WD & 4WD) 1UZ-FE, 2UZ-FE, or 3UZ-FE V8 swap 1989–1995 Toyota 4Runner 1UZ-FE, 2UZ-FE, or 3UZ-FE V8 swap Other chassis Custom / non-standard applications Contact NWT with core support measurements — built to fit Important: Fitment is determined by the recipient chassis year and model, not by which UZ engine you are installing. All 1UZ, 2UZ, and 3UZ variants use the same radiator for standard 1989–1995 applications. If your recipient vehicle is not a 1989–1995 Pickup or 4Runner, you must contact Northwest Toys with precise measurements of your core support opening before placing an order. This radiator is designed for use with NWT motor mount and header configurations — compatibility with other swap kits should be confirmed before purchase. Installation & Maintenance Installation Difficulty: Advanced / Expert fabrication required Tools Required: Angle grinder or cutting wheel, welder (recommended for reinforcing cut edges), drill, torque wrench, radiator hose clamps, coolant Professional Installation: Strongly recommended unless you have fabrication experience — core support cuts are permanent and must be made cleanly to maintain chassis rigidity and proper radiator positioning Maintenance Tips: Use a 50/50 mix of Toyota-compatible coolant and distilled water — avoid tap water, which causes mineral buildup in aluminum cores Inspect nutsert mounting points annually for tightness; vibration from off-road use can work fasteners loose over time Flush and replace coolant every 2 years or 30,000 miles to prevent electrolytic corrosion in aluminum tanks If running the NWT electric fan, verify the thermostatic controller setpoints annually — a fan that cycles on too late accelerates heat soak at low speed and in crawling terrain Frequently Asked Questions Q: Does this radiator fit all three UZ engine variants — 1UZ, 2UZ, and 3UZ? A: Yes. The NWT UZ Swap Radiator is compatible with 1UZ-FE, 2UZ-FE, and 3UZ-FE engines. Fitment is based on the recipient chassis, not the engine variant. All three UZ engines use the same radiator in standard 1989–1995 Pickup and 4Runner applications. Q: What chassis modifications are required to install this radiator? A: This radiator requires permanent fabrication work. It is not a bolt-in replacement. You must cut the lower radiator support across the bottom and the side brackets to achieve the necessary core clearance. A minimum 1" body lift is also required for proper hood clearance and radiator positioning. These are irreversible modifications that should only be undertaken by builders prepared to commit to the swap. Q: My vehicle is not a 1989–1995 Pickup or 4Runner — can I still order this radiator? A: Possibly, but you must contact sales@northwesttoysllc.com before ordering. Non-standard chassis applications require precise measurements of your core support opening to ensure proper fitment. We build to order, so custom sizing may be possible — but we need your measurements first. Q: How long does it take to receive this radiator after ordering? A: This radiator is built to order and ships in approximately 4–6 weeks. Do not order this part on a tight timeline — plan your build schedule accordingly. Q: Can I use this radiator with a non-NWT motor mount or header setup? A: This radiator is engineered around North West Toys motor mount and header configurations. If you are running a different swap kit, confirm with NWT before ordering. Engine positioning differences can affect hose routing, fan clearance, and overall fit. Q: What's the difference between ordering the radiator alone versus the full cooling system package? A: The standalone radiator is the core of the system. The NWT 1UZ Cooling System Package adds the shroud, 16" electric fan, thermostatic fan controller with harness, and upper and lower radiator hoses — everything you need for a complete, integrated cooling solution. For most builders doing a full swap, the package eliminates the need to source multiple components and ensures everything is matched and tested to work together. Related Toyota Parts You May Need NWT 1UZ Cooling System Package — Includes this radiator plus the NWT shroud, 16" electric fan, thermostatic controller & harness, and upper/lower hoses. The complete solution for builders who don't want to source cooling components piecemeal. NWT Upper Radiator Hose (UZ) — Correctly sized and routed for the UZ engine paired with NWT radiators. Constructed from EPDM with synthetic fiber reinforcement for collapse resistance and electrochemical degradation protection. NWT Lower Radiator Hose (UZ) — Swap-specific lower hose engineered for UZ-to-NWT radiator routing. Same EPDM construction as the upper hose. NWT 16" Electric Fan — Engineered for tight UZ swap clearances, pairs directly with the NWT shroud and thermostatic controller for a complete airflow solution. Full-Frame A/C Condenser (14×20") — If your build retains or adds air conditioning, this condenser is sized and positioned for the UZ swap application. Mount alongside the NWT radiator with the matching shroud. NWT UZ Swap Headers — The header configuration that this radiator's hose routing and fan clearance are designed around. If you haven't sorted headers yet, do it before finalizing your cooling layout. Signs Your UZ Swap Cooling System Is Undersized or Failing Coolant temperature climbing above normal on the highway or in slow traffic — especially with the stock radiator still in place Overheating during low-speed crawling or idling in hot weather, where airflow through the core is minimal Coolant loss without visible external leaks — often a sign of a pressurized system pushing past an undersized or failing radiator cap seal Steam or sweet smell from the engine bay after hard use — coolant boiling off from an overworked, undersized core Cracked or delaminated epoxy-bonded radiator tanks — a common failure mode on generic import radiators used in high-heat swap applications Why This Radiator Exists No factory radiator was ever built to cool a 4.0–4.7L V8 in a 1989–1995 Toyota Pickup or 4Runner. The stock cooling infrastructure on these chassis was engineered for inline-four and V6 engines, producing a fraction of the combustion heat a UZ engine generates. Using an undersized or generic radiator in a UZ swap isn't just a performance compromise — it's a reliability risk. Heat soak on the trail, slow-speed crawling in the desert, and long highway pulls all stress a cooling system that isn't matched to the engine. The NWT UZ Swap Radiator was built specifically because the right solution didn't exist off the shelf. The dual-row 1" tube core, TIG-welded aluminum construction, and nutsert mounting system are all deliberate engineering decisions made for this specific application. The 5-year warranty reflects the level of confidence that comes from a part designed, built, and tested in-house — not sourced from an overseas catalog. This radiator requires chassis fabrication. If you're ready to make that commitment, you're getting a cooling solution purpose-built for your swap. If you want to complete the system in one order, add the NWT 1UZ Cooling System Package and skip the sourcing headache entirely.