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Arp

Arp

ARP 4.390 Ring Compressor

SKU: ARP900-3900

Piston Ring Compressors

ARP Ring Compressor...

Arp

Arp

ARP 4.390 Ring Compressor

SKU: ARP900-3900

Piston Ring Compressors

ARP Ring Compressor...

Sale ends in Calculating...

A$164.15 A$218.07
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

ARP tapered piston ring compressors are CNC-machined from 6061-T6 billet aluminum tube material and feature a true radius for each individual bore diameter. They're also relieved to accommodate wire O-rings on the bottom. Type 3 anodizing is used for long life, and each bore size is prominently engraved in 3/4 in. high numbers for easy identification. The true-radius design of ARP tapered ring compressors is far superior to conventional tapered devices, and they're widely acclaimed by professional engine builders. Dozens of sizes are available for both standard and metric applications.

Part Type

4.390 Tapered Ring Compressor

Data: v4.2 - Upd: 2026-10-17 00:37:30

Specifications

Product Attributes - Brand
ARP
Product Attributes - Manufacturer's Part Number
900-3900
Product Attributes - Part Type
Piston Ring Compressors
Product Attributes - Product Line
ARP Tapered Ring Compressors
Product Attributes - UPC
672036018689
Product Attributes - Adjustable
No
Product Attributes - Tapered
Yes
Product Attributes - Piston Ring Compressor Material
Aluminum
Product Attributes - Piston Ring Compressor Finish
Black anodized
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Arp
StreetFX SKU arp900-3900
SFX Item ID 4366875
Supplier Item Code 4366875
Manufacturer SKU 900-3900
Manufacturer UPC 672036018689

Compatibility

Application Data
  • Minimum Diameter (in.)(application)4.390 in.
    Minimum Diameter (mm)(application)111.51mm
    Maximum Diameter (in.)(application)4.390 in.
    Maximum Diameter (mm)(application)111.51mm

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