Klein MODbox Spool Holder Rail Attachment (54866MB)
Klein MODbox Spool Holder Rail Attachment (54866MB)
Out of Stock - Available to Order - Usually ships in 15-20 days
Product Details
Product Details
Key Features
Overview
The Klein Tools MODbox Spool Holder Rail Attachment (54866MB) is a wire spool dispenser for the MODbox system. This is a rail-mounted spool holder designed for electricians who pull wire from standard 500-foot spools of up to 10 AWG solid wire. It mounts to MODbox wall panels or MODbox rolling systems tool-free.
On a wall, a row of these turns into a wire wall in the shop or trailer: each gauge and color on its own dispenser, labeled and ready to pull. On a MODbox rolling setup, a single dispenser rides with you on service calls, so you can pull a few feet of 12 AWG without hauling a spool cart in.
The holder is compact and stackable, with an adjustable width listed by Klein. It is plastic in gray and silver, measures about 15-1/4" long x 5-7/8" wide x 3-1/2" tall (38.7 x 14.9 x 8.9 cm), weighs 9.4 oz (268 g) and is rated to 20 lb (9.1 kg).
It is not limited to wire. The same dispenser holds a roll of paper towels or tape, which makes it useful in cleanup zones and general shop areas too.
Who should buy it: electricians building out trailers or shops on the MODbox system, and service techs who want a spool of wire on their rolling box.
Pull Wire Straight Off the Wall
Standard 500-foot spools of solid wire up to 10 AWG drop right on, ready to pull.
- Fits standard 500-foot spools
- Up to 10 AWG solid wire
- Rated to 20 lb (9.1 kg)
Stack Them Into a Wire Wall
Add one for a single gauge or stack several for a full wire wall in the shop or trailer.
- Compact, stackable design
- Mounts to MODbox wall panels or rolling systems
- Tool-free installation
Key Specifications
| Spool Capacity | Standard 500-foot spools, up to 10 AWG solid wire |
|---|---|
| Rated Capacity | 20 lb (9.1 kg) |
| Width | Adjustable |
| Material | Plastic |
| Color | Gray and silver |
| Dimensions (L x W x H) | 15-1/4" x 5-7/8" x 3-1/2" (38.7 x 14.9 x 8.9 cm) |
| Mounting | MODbox wall panels, rolling systems and side rails |
| Weight | 9.4 oz (268 g) |
Compatibility
Built For
Pro Tip
Mount the 12 AWG and 14 AWG spools at waist height and the colors you pull less often higher up. Wire pulls easiest when the spool sits at the height you naturally feed from.
Tool Nut's Take
A Wire Wall, One Spool at a Time
The Klein Tools MODbox Spool Holder Rail Attachment (54866MB) puts 500-foot wire spools on the MODbox wall or rolling box, ready to pull.
- Who it's for: Electricians setting up shops, trailers or rolling service kits on MODbox.
- Why it stands out: Fits standard 500-foot spools to 10 AWG solid, stacks into a wire wall and doubles as a towel holder.
- Worth knowing: It is rated for solid wire up to 10 AWG on 500-foot spools. Larger gauges and bigger reels need a dedicated reel stand.
Common Questions
- What wire spools fit the 54866MB? Standard 500-foot spools of up to 10 AWG solid wire.
- Can it mount to a MODbox rolling toolbox? Yes. Klein lists it for MODbox wall panels or rolling systems.
- Can I use it for paper towels? Yes. Klein notes it doubles as a paper towel or tape roll holder.

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