Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Diamond LSA Dish Top Forged Pistons With Rings (D11588-R1-8-STD)DIAMOND LS9 LSA 4. 065" BORE 4. 065" bore, 3. 622" stroke, 6. 098" rod length, 11cc dome volume Part Number: D11588 R1 8 STD Piston Specifications: Piston Specifications: Block: LSA Bore: 4. 065 Stroke: 3. 622 Rod: 6. 098 Comp Heigh: 1. 331 Weight: N A Pin: . 945 x 2. 500" CC's: Dish Top 11. 0 Comp Ratio With 62cc Head: N A Comp Ratio With 70cc Head: 9. 5 Comp Ratio With 76cc Head: N A Ring Set: 09454065 Piston Features: 3D milling on piston crowns
DIAMOND LS9 LSA 4.065" BORE
4.065" bore, 3.622" stroke, 6.098" rod length, -11cc dome volume
Part Number: D11588-R1-8-STD
Piston Specifications:
- Piston Specifications:
- Block:LSA
- Bore: 4.065
- Stroke: 3.622
- Rod: 6.098
- Comp Heigh: 1.331
- Weight: N/A
- Pin: .945 x 2.500"
- CC's: Dish Top -11.0
- Comp Ratio With 62cc Head: N/A
- Comp Ratio With 70cc Head: 9.5
- Comp Ratio With 76cc Head: N/A
- Ring Set: 09454065
Piston Features:
- 3D milling on piston crowns for ready to install finish
- Valve pockets designed to work with most aftermarket cylinder heads
- Offset pins for quiet operation
- Moly skirt coating for friction loss and skirt wear protection
- Top ring down dimension: .250"
- Ratios figured for .040 head gasket
- Premium 1.2mm x1.2mm x 3.0mm ring package included
- Premium 8620 .185W wrist pins included
- Valve pocket depth: 0.178" intake and .108"exhaust
- 2618 material for High HP-NOS-Boost applications
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
4.2 ★★★★★
Based on 1141 reviews
Sort
Product Reviews
★★★★★ 5
Finally a mount for my truck!
2015 Toyota Tacoma Prerunner. I've tried many different mounts - ones that stuck to the dash, stuck to the windshield, one that mounted in the cup holder in the console. They all were bad in their own way. This Offroam mount finally got it right. Easy installation - and when I say SOLID hold I mean it. No movement, no rattle, do creaking sound, etc, etc. I was very skeptical of the one-handed use getting the phone in and out but it's really a genius design.
Seriously - I just got it, so can't really speak to longevity yet. Judging by the design and quality of parts, I'll say it will be the last mount I ever purchase for this truck. Pay the extra, and be happy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
★★★★★ 5
Great Quality, Perfect Fit
2015 Tacoma. This fit perfectly and is solid. Last/Different one I had on another vehicle broke one of my vent dividers. That can't happen with this design. Worth the money. Would absolutely recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
★★★★★ 5
Well build and functions nicely
The products build quality is excellent; in fact, its far superior to this product's competitor, "Batdiary". This mount stays locked in place when i use one hand to mount my phone or remove it. Also, the internal mechanism is much nicer than the Batdiary one and feels like it has tighter and more accurate machining tolerances which should prevent it from rattling like its competitor's did after a couple weeks use.
I highly recommend this product, it is worth the high price tag!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 6, 2025
★★★★★ 4
Buy once, cry once
This Offroam phone mount is not the cheapest option, but it is easily the most functional and sturdy one available, especially for second-generation Toyota Tacomas. I went through several plastic phone mounts before this and should have bought this one from the start to save both money and frustration.
Installation was very simple, and it is even easier to use day to day. I like that this mount uses adjustable arms to grip the phone rather than relying on MagSafe. It keeps my phone secure even on rough terrain and offers plenty of flexibility for positioning the phone exactly where you want it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 25, 2026
★★★★★ 5
Top notch mount with high build quality
I love it when I take a chance and spend some extra money hoping for a quality product - and it actually pans out. I bought this for my 2nd gen Toyota Tacoma (2014). The install was fast. Instructions were clear. The mount is ROCK solid and has two points of articulation so I can position my phone well. I couldn't ask for a better product. The price I paid was a little steep for a mount, but if you demand quality then look no further.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 21, 2025