Stack this Extender onto either bore of your 2×1 HD4 kit to create room for an additional insert—bottles, mugs, trays, ZYN, phone, you name it.
Highlights
Expand to 3 inserts: Multiply storage without tools or wobble.
Modular fit: Works with all Cupholder Commander® inserts (XL, L, Standard, Trays, ZYN, ALP, etc.).
Rock-solid lock: Positive engagement resists spin and rattle.
Made in USA: Designed and manufactured in-house.
What’s Included
(1) Cupholder Commander® Extender (EXT_HD4)
Compatibility
Base: Cupholder Commander® HD4
Kits: Designed for the 2×1 configuration; stacks on either bore
Vehicles: Universal where the HD4 base fits (3.125", 3.67", 3.95" IDs)
Install (Seconds)
Align over HD4 bore → 2) Press & twist to lock → 3) Drop in your insert.
Stack this Extender onto either bore of your 2×1 HD4 kit to create room for an additional insert—bottles, mugs, trays, ZYN, phone, you name it.
Highlights
Expand to 3 inserts: Multiply storage without tools or wobble.
Modular fit: Works with all Cupholder Commander® inserts (XL, L, Standard, Trays, ZYN, ALP, etc.).
Rock-solid lock: Positive engagement resists spin and rattle.
Made in USA: Designed and manufactured in-house.
What’s Included
(1) Cupholder Commander® Extender (EXT_HD4)
Compatibility
Base: Cupholder Commander® HD4
Kits: Designed for the 2×1 configuration; stacks on either bore
Vehicles: Universal where the HD4 base fits (3.125", 3.67", 3.95" IDs)
Install (Seconds)
Align over HD4 bore → 2) Press & twist to lock → 3) Drop in your insert.
