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Ships within 48 hours · Estimated delivery Jul 21 - Jul 26
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Description
Wiseco HD 1340 Evo BB 9.51 CR 3740XH Piston KitV Twin performance has been around since some of the earliest days of motorcycle racing and engine modification, and Wiseco has been there since the beginning. Applying over 80 years of experience, Wiseco has fine tuned its V Twin pistons for each specific engine platform to optimize performance and durability. From reliable rebuilds to all out race, Wiseco has the pistons for your V Twin build. Complete Package: Each piston includes a wrist pin,
V-Twin performance has been around since some of the earliest days of motorcycle racing and engine modification, and Wiseco has been there since the beginning. Applying over 80 years of experience, Wiseco has fine-tuned its V-Twin pistons for each specific engine platform to optimize performance and durability. From reliable rebuilds to all-out race, Wiseco has the pistons for your V-Twin build.
- Complete Package: Each piston includes a wrist pin, rings, and circlips, providing everything needed for installation
- Forged Material: Optimizes strength and service life, ensuring durability under high-stress conditions
- Performance-Enhancing Features: Varied across applications to maximize both durability and power
- Improved tensile strength of forged material optimizes strength and service life
- Optimized compression ratio to fit your build and performance goals
- Designed and built specifically for each V-Twin engine platform
- Engineered, forged, and machined in the USA in Mentor, OH
- Wrist pin, rings and circlips included
- 3.740 in. Bore, 9.5:1 CR
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1994-1998 | Harley-Davidson | FLHR Road King | Base |
| 1998 | Harley-Davidson | FLHRCI Road King Classic | Base |
| 1996-1997 | Harley-Davidson | FLHRI Road King | Base |
| 1987-1993 | Harley-Davidson | FLHS Electra Glide Sport | Base |
| 1988,1995-1998 | Harley-Davidson | FLHT Electra Glide Standard | Base |
| 1984-1998 | Harley-Davidson | FLHTC Electra Glide Classic | Base |
| 1996-1998 | Harley-Davidson | FLHTCI Electra Glide Classic | Base |
| 1989-1997 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | Base |
| 1995-1998 | Harley-Davidson | FLHTCUI Electra Glide Ultra Classic | Base |
| 1986-1990 | Harley-Davidson | FLST Heritage Softail | Base |
| 1988-1999 | Harley-Davidson | FLSTC Heritage Softail Classic | Base |
| 1991-1996 | Harley-Davidson | FLSTF Fat Boy | Base |
| 1996-1999 | Harley-Davidson | XL1200C Sportster 1200 Custom | Base |
| 1996-1999 | Harley-Davidson | XL1200S Sportster 1200 Sport | Base |
| 1999 | Harley-Davidson | XL883C Sportster 883 Custom | Base |
| 1986-1995 | Harley-Davidson | XLH883DLX Sportster 883 Deluxe | Base |
| 1987-1999 | Harley-Davidson | XLH883HUG Sportster 883 Hugger | Base |
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
4.3 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 3
This was not for me
Size: King
Hmm… I didn’t hate this pillow but I was not blown away either.
I’ve been using Sleep Number pillow, and since the price range was similar, I thought this might be a great alternative, especially when it’s hot. Even though I was able to adjust the filling, I couldn’t find the right shape/density. And I found that this pillow felt hotter when I was sleeping.
After trying it for a few weeks, I went back to my Sleep Number pillow. The quality was fine. But I guess everyone is different, just like some people prefer a softer mattress and others don't.
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Reviewed in the United States on October 13, 2024
★★★★★ 5
Best pillow ever.
Size: King
How much did I like this pillow? My wife and I both loved it so much that we purchased another one. I think that says it all! The pillow arrives in a large box (king size pillow). It does NOT arrive all flattened and squished in a vacuum bag like some others do. I did place it on my back porch to air out for a while, just because that's what I do with any new bedding. I did not have any issue with scent or odors from either of my pillows. Its clearly well constructed with high quality materials. It comes with a smaller bag of extra stuffing if you want a slightly firmer pillow. We have not used any of the extra stuffing... we think the pillows are perfect as is! When I ordered the first pillow, I thought the price was a bit on the high side. After using it, I had no hesitation purchasing a second. This pillow is well worth the price. If anything, I feel this pillow is a great value at its price. Its not too hard, not too soft. Its the goldilocks pillow! I give this pillow my highest possible recommendation. Its simply a great pillow.
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Reviewed in the United States on December 5, 2024
★★★★★ 5
Super comfy
Color: Soft, Size: Queen(28"×16"×5.9")
Absolutely love this pillow! It’s incredibly soft, supportive, and stays cool throughout the night. I’ve been sleeping much better since getting it. Great quality, perfect firmness, and definitely worth every penny.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Soft pillow
Color: Soft, Size: Standard(24"×16"×5.5")
This latex pillow has been a great addition to my sleep routine. It offers the perfect balance of softness and support, especially side sleeping. I noticed less pressure on my neck and shoulders after using it. I also like that it’s made with natural latex and free from harsh memory foam chemicals. The removable cover is convenient, and the packaging makes it feel like a premium product.
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Perfect Balance of Comfort & Support!
Color: Soft, Size: Standard(24"×16"×5.5")
I absolutely love this pillow! The Talalay latex feels incredibly supportive while still being soft and comfortable. Unlike memory foam, it doesn't trap heat or give off any chemical smell-just clean, natural comfort.
I've noticed a huge difference in my sleep quality; it relieves pressure from my neck and shoulders, and I wake up without stiffness.
The Tencel cover is smooth, breathable, and removable for easy washing, which makes it feel extra fresh. The packaging was beautiful, making it feel like a premium gift right out of the box.
If you're looking for a high-quality natural pillow that's supportive, durable, and chemical-free, this is it. Highly recommend!
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Reviewed in the United States on August 31, 2025