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Description
TBS Blower Pulley Spacer (B4254)PULLEY 3 8 SPACER 6 Bolt, 3 8" Thick Part Number: B4254 TBS Pulley Spacers are machined from the same high quality billet aluminum as TBS's signature billet Supercharger cases. Machined to precise specifications, there are a variety of sizes that may be mixed and stacked together to provide the necessary clearances. The spacers have the same 2 inch register and 6 hole universal pattern as our Blower Pulleys. Extreme care should be taken to install a
PULLEY 3/8 SPACER
6-Bolt, 3/8" Thick
Part Number: B4254
TBS Pulley Spacers are machined from the same high quality billet aluminum as TBS's signature billet Supercharger cases. Machined to precise specifications, there are a variety of sizes that may be mixed and stacked together to provide the necessary clearances. The spacers have the same 2 inch register and 6 hole universal pattern as our Blower Pulleys.Extreme care should be taken to install a flat and straightspacer. This will eliminate excessive “Pulley Wobble†.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Great value for the price
Perfect fit,good quality
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Reviewed in the United States on December 11, 2025
★★★★★ 5
Excellent quality
Size: 2023-26 CRV 1.5L Gas
Fit my Honda CRV perfect
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Great Value, Cost-Effective, Installs in Minutes
Size: 2023-26 CRV 1.5L Gas, Size: 2023-26 CRV 1.5L Gas
This air filter set ended up being a great value and a convenient all-in-one solution for routine maintenance.
What stood out right away is how closely these match OEM quality in terms of fit and overall design. Both the engine and cabin filters dropped into place without any issues, and installation was quick and straightforward. It’s the kind of swap that can be done in a short amount of time without needing any special tools, which is always a plus.
I also really like that this kit includes both filters together. Since it’s generally best to replace them at the same time, having everything bundled eliminates the need to search for separate parts, compare options, or deal with multiple orders and shipping times. It makes the whole process much more efficient.
In terms of performance, I did notice a slight improvement in fuel economy during my regular commute after installation. It’s not a dramatic change, but it’s a nice added benefit and a good indication that the filters are doing their job effectively.
Overall build quality seems solid, and everything feels comparable to what you’d expect from a factory replacement. For the price, this is an excellent value and a practical choice for keeping up with regular vehicle maintenance.
I’ve been very satisfied with this set so far and would definitely consider purchasing it again when it’s time for the next replacement.
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Reviewed in the United States on April 18, 2026
★★★★★ 4
Professional-Grade Filtration for a Factory-Fresh Drive
Size: 2023-26 CRV 1.5L Gas
If you have a newer 1.5L Civic or CR-V, you know that keeping your engine breathing clean air is the best way to maintain fuel efficiency and long-term reliability. I picked up this Engine and Cabin Air Filter Set for a routine maintenance refresh, and the fit and material quality are indistinguishable from the factory components. It’s a high-quality, "all-in-one" solution that saves a trip to the dealership and keeps your cabin air crisp.
Why this filter set is a standout for 1.5L Honda owners:
Precise "Lock-Down" Fit (17220-64A-A00): The engine air filter is a perfect drop-in for the 2022–2026 Civic and 2023–2026 CR-V 1.5L gas models. The rubber gasket provides a tight, airtight seal in the airbox, ensuring that no dust or grit bypasses the filter.
High-Efficiency H13 Cabin Filtration: The cabin filter (80291-T5R-A01) is noticeably more substantial than some budget options. It does an excellent job of scrubbing out pollen, road dust, and exhaust odors, which is essential if you spend a lot of time on the road or deal with high-humidity environments.
Rugged, Deep-Pleat Construction: You can feel the quality in the filter media. The engine filter has consistent, deep pleats that maximize surface area for better airflow, while the cabin filter feels sturdy enough to handle high-velocity AC settings without vibrating or whistling.
Direct OEM-Spec Replacement: These are true 1:1 replacements for the factory part numbers. No trimming or "making it fit"—they slide into their respective housings exactly as they should, providing a professional-level service in under 15 minutes.
Outstanding Multi-Pack Value: Buying this set is a fraction of the cost of a dealership service. It’s an inexpensive bit of insurance for your engine’s intake system and your own respiratory comfort.
⚠️ Critical Fitment Note: This set is specifically engineered for the 1.5L Gas engines. If you are driving a 2.0L or a Hybrid model, the airbox dimensions are different, so double-check your engine specs before ordering to ensure a 100% compatible fit.
Installation Tip: When swapping the cabin filter, look for the "Air Flow" arrow on the side of the filter frame. Ensure it is pointing downward (toward the floor) to match the factory airflow direction. For the engine filter, give the inside of the airbox a quick wipe with a clean microfiber cloth before dropping the new one in to ensure a perfectly clean start.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
2 for 1. Great deal over buying separately.
Size: 2023-26 CRV 1.5L Gas, Size: 2023-26 CRV 1.5L Gas
At first, I thought this was an average priced item. What I didn't realize is that my year old 2025 CR-V has TWO filters.
The normal Panel Air Filter found under the hood and a Cabin Air Filter secreted away behind the glove compartment.
The Pane Air Filter alone generally runs from $19.99 to $35.99.
Cabin Air Filter runs a little lower in average price but the 2 combined would be nearly double the cost of this kit ($26.99 at time of order).
FIT:
• These filters fit snugly. Just like the OEM versions.
Recommendation: Verify that you have the correct year/model CR-V. These will not fit the Hybrid.
VALUE
• Great price for both filters.
CONCLUSION
I don't think I can beat the price of these 2 filters together in a set. I live in an area where Spring tree pollen is often as much as 10X what is generally consider high. Changing filters regularly is a must. I certainly recommend this set for quality and value.
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Reviewed in the United States on April 6, 2026