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The ARP234-2503 Balancer Bolt Kit is a premium automotive component featuring 16mm x 2.0 UNC threading, Grade 10.9 high-strength steel alloy construction, and a corrosion-resistant black oxide finish. Manufactured in the USA by ARP, this compact and lightweight kit delivers professional-grade durability and precision for enhanced engine performance.

| ASIN | B0785P5L8M |
| Best Sellers Rank | #56,455 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Replacement Engine Harmonic Balancer Repair Kits |
| Brand | ARP |
| Color | Black |
| Compatible Groove Diameter | 1 Inches |
| Customer Reviews | 4.9 out of 5 stars 109 Reviews |
| Drive System | Rear-Wheel Drive |
| Exterior Finish | Black Oxide |
| Fastener Size | 3/8 in - 16 TPI |
| Fastener Type | U-Bolt |
| Finish Types | glossy |
| Head Style | Hex |
| Head Type | Hex |
| Included Components | LS1, LS6 5.7L & 6.0L balancer bolt kit |
| Item Dimensions | 10 x 6 x 1.75 inches |
| Item Hardness | Grade 8 |
| Item Type Name | Balancer Bolt Kit |
| Manufacturer | ARP |
| Manufacturer Grade | heavy-duty |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Metal Type | Alloy Steel |
| Model | 234-2503 |
| Number Of Items | 1 |
| Part Number | 234-2503 |
| Screw Head Style | Hex |
| Screw Point Style | U-Shape |
| Set Name | Balancer Bolt Kit |
| Set Screw Thread Type | Unified National Coarse (UNC) |
| Size Name | 3/8 in - 16 TPI |
| Thread Class | 2A |
| Thread Coverage | Fully Threaded |
| Thread Size | 3/8"-16 UNC |
| Thread Style | Right Hand |
| Thread Type | Unc |
| UPC | 672036030315 |
| Unit Count | 1.0 Count |
A**N
Fits
Works great for ls
J**F
Excellent product do not use factory bolt
This is a must buy you must use when replacing the harmonic balancer. If you donโt, you will have problems. Do not use the factory bolt.
N**Z
Impressive.
Make sure you get the 12 point socket when you buy this. I had an eight point and it did not fit. After getting the right socket, I installed this and let me tell you something, 235 foot pounds is nothing to shake a stick at. I am impressed.
D**R
Real arp bolt
Trust from this seller. Real arp bolt
J**N
High Quality
ARP makes good stuff
A**T
Correct
As described
C**A
Now THAT's a bolt
This thing is definitely engineered to last. Way stronger than the stock GM bolt.
D**H
Easy instal
Much easier to deal with that the factory TTY bolt since this one I can reuse if I do any internal work.
C**Y
10/10
ARP is the best, just follow the instructions
M**X
Fast ship
Perfect fit
Trustpilot
2 weeks ago
3 weeks ago