K24Z Oil Pump Swap Kit: PRB/Type-S Upgrade Install Steps
By PRL Motorsports - Premium Automotive Performance Products | Published: 2026-11-02
Category: How-to Guides
Swap the K24Z3 or K24Z7 balance-shaft oil pump for a PRB/Type-S unit with the right DIY kit. Follow these steps and checkpoints to get oiling right the first time.
Quick answer
Use the PRL Motorsports Honda K24Z7 and K24Z3 (PRB/Type-S) Oil Pump DIY Swap Kit to replace the factory balance-shaft pump with a PRB/Type-S pump, and add the PRB/Type-S Oil Pump Windage Tray Bracket to secure the windage tray. Follow the steps below in order and check each checkpoint before moving on.
Why the PRB/Type-S pump is the common fix for high-rpm K24Z builds
The factory K24Z oil pump uses balance shafts, and at high rpm that layout becomes inefficient and can cause oiling problems. Swapping to the Acura RSX Type-S PRB pump removes the balance shafts and improves oil supply, which is why it is the usual solution for 9th-gen Civic Si and TSX engines turning 8000+ rpm.
The catch: the PRB pump does not simply bolt in with the original windage tray hardware. The PRL kit supplies the parts needed to complete the swap, and the separate windage tray bracket is required to mount the tray correctly. Skipping either leaves the job incomplete.
When this swap is worth it, and when it is not
This upgrade makes sense if you are building a K24Z3 or K24Z7 for big power or sustained high-rpm use and want to eliminate the balance-shaft pump. If your engine is stock and sees normal street rpm, the factory pump is not the weak point, and the extra cost and labor may not be justified.
Also confirm you are working with a K24Z3 or K24Z7 block. The kit is specific to those engines; other K24 variants use different pump and pan arrangements. If you are unsure which pump your engine currently has, identify it before ordering.
Install steps for the K24Z PRB/Type-S oil pump swap
- 1. Gather parts and verify the kit: Lay out the PRL Motorsports Honda K24Z7 and K24Z3 (PRB/Type-S) Oil Pump DIY Swap Kit and the PRB/Type-S Oil Pump Windage Tray Bracket. Confirm you have the PRB/Type-S pump itself, a new oil pump seal, and the correct oil and filter for your build. Check every kit component against the parts list before disassembly. A missing bracket or fastener stops the job, so verify the kit contents before you drain oil.
- 2. Drain oil and remove the accessory drive: Drain the engine oil completely and remove the accessory drive belt, then unbolt the alternator and any brackets that block access to the oil pan and timing cover. Support the engine as needed before removing mounts. Drain into a clean pan and inspect for metal debris; glitter in the oil is a reason to stop and diagnose before installing a new pump.
- 3. Remove the oil pan and factory balance-shaft pump: Unbolt the oil pan and carefully separate it from the block. Remove the pickup tube and the factory balance-shaft oil pump. Keep the fasteners organized by location, and note the orientation of the windage tray and any spacers. Do not pry on the pan sealing surface; a distorted pan rail causes leaks that are easy to avoid.
- 4. Clean the sealing surfaces and inspect the pickup: Scrape and clean the old sealant from the block and pan rails without gouging the aluminum. Inspect the oil pickup tube for cracks or blockage and replace it if damaged. Check the PRB pump drive for wear before installation. A clean, flat sealing surface is what prevents leaks after assembly; this step is not optional.
- 5. Install the PRB/Type-S pump and windage tray bracket: Fit the PRB/Type-S oil pump to the block and torque its fasteners to the factory specification for your engine. Install the PRB/Type-S Oil Pump Windage Tray Bracket and attach the windage tray in its correct position. Confirm the tray clears the rotating assembly and the pickup. Rotate the engine by hand after fitting the tray to confirm no contact before the pan goes on.
- 6. Reinstall the oil pan and pickup tube: Install the pickup tube with a new gasket or O-ring as required, then reseal and refit the oil pan. Torque the pan bolts in a cross pattern to the factory specification. Let the sealant cure per its instructions before adding oil. Over-torquing pan bolts squeezes out sealant and causes leaks; use a torque wrench, not feel.
- 7. Refill, prime, and check oil pressure: Fill with the correct oil and a new filter. Disable ignition and fuel, crank the engine briefly to build oil pressure, then start and check for leaks. Verify oil pressure meets your engine's specification at idle and at rpm before any high-load driving. If oil pressure is low or the warning light stays on, shut off immediately and recheck the pickup and pump installation.
Parts that make the swap work
- Honda K24Z7 and K24Z3 (PRB/ Type-S) Oil Pump DIY Swap Kit: The PRL Motorsports Honda K24Z7 and K24Z3 (PRB/Type-S) Oil Pump DIY Swap Kit is designed to replace the factory balance-shaft oil pump with the PRB/Type-S pump. It gives you the specific hardware for this swap instead of piecing together parts, which reduces the chance of a missing bracket or fastener mid-install.
Honda K24Z7 and K24Z3 (PRB/ Type-S) Oil Pump DIY Swap Kit - PRB/ Type-S Oil Pump Windage Tray Bracket: The PRB/Type-S Oil Pump Windage Tray Bracket is required to mount the windage tray when using the PRB pump. Without it, the windage tray cannot be secured correctly, so this bracket belongs on your parts list before you start.
PRB/ Type-S Oil Pump Windage Tray Bracket
