
Stinger SHD21 HPM Multi Port Distribution Block
Stinger SHD21 HPM Multi-Port Distribution Block, 2 Input / 4 Output
A non-fused power or ground distribution block from the Stinger HPM Series two 1/0GA or 4GA inputs, four 4GA or 8GA outputs, satin chrome finish, protective cover included. Suited to larger multi-amplifier installations.
Product Overview
The Stinger SHD21 is an HPM Series power or ground distribution block with two high-gauge inputs and four outputs designed for larger multi-amplifier builds where a single distribution point needs to service up to four separate amplifiers. It accepts two 1/0GA or 4GA inputs and provides four 4GA or 8GA outputs.
The satin chrome finish matches the SHD20 for consistent aesthetics across a build, and a protective cover is included. Non-fused main line fusing must be provided externally at the battery.
Features & Benefits
- HPM Series power or ground distribution block
- Two 1/0GA or 4GA inputs, four 4GA or 8GA outputs
- Non-fused — main power run fusing required externally
- Satin chrome finish — corrosion resistant
- Protective cover included
- Compact space-saving design
Technical Specs
| Specification | Detail |
|---|---|
| SKU / Part Number | SHD21 |
| Brand | Stinger |
| Series | HPM |
| Number of Inputs | 2 |
| Input Gauge | 1/0GA or 4GA (max 1/0 AWG) |
| Number of Outputs | 4 |
| Output Gauge | 4GA or 8GA (max 4 AWG) |
| Fused | No — non-fused |
| Finish | Satin chrome |
| Protective Cover | Included |
Compatible With / Goes Well With
Direct Vehicle Fit:
- Universal — suitable for any multi-amplifier power or ground distribution
Goes Well With:
- Stinger SK4201 0GA amplifier wiring kit (0GA/1/0GA input)
- Stinger SK4241 4GA amplifier wiring kit (4GA input)
- Stinger SHD20 HPM distribution block (2-output version for smaller builds)
- Stinger SPF52250 / SPF52300 ANL fuses (for main power run fusing at the battery)
- Car audio amplifiers requiring separate 4GA or 8GA power connections
Frequently Asked Questions
What is the difference between the SHD21 and the SHD20?
The SHD20 has one input and two outputs — suited to two-amplifier builds. The SHD21 has two inputs and four outputs — suited to larger four-amplifier builds or installations requiring more distribution points. Both share the satin chrome finish and non-fused design.
Why does this block have two inputs?
Two inputs allow two separate large-gauge power runs to be combined at the distribution point — for example, two separate battery or power runs feeding a single distribution block, which then splits to four amplifiers. This provides greater flexibility for complex multi-source builds.
Is fusing included?
No. The SHD21 is a non-fused distribution block. Fusing must be provided externally on each power run at the battery using appropriately rated ANL or MIDI fuse holders.
Can this block be used for ground distribution?
Yes. Like the SHD20, the SHD21 can be used on either the positive power or ground side of the installation.
What gauge wire is compatible with each port?
Inputs accept up to 1/0GA (1/0 AWG) wire. Outputs accept up to 4GA (4 AWG) wire. Use correctly sized ring terminals or crimped connectors to match the wire gauge being used.
Original: $40.52
-65%$40.52
$14.18Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Stinger SHD21 HPM Multi-Port Distribution Block, 2 Input / 4 Output
A non-fused power or ground distribution block from the Stinger HPM Series two 1/0GA or 4GA inputs, four 4GA or 8GA outputs, satin chrome finish, protective cover included. Suited to larger multi-amplifier installations.
Product Overview
The Stinger SHD21 is an HPM Series power or ground distribution block with two high-gauge inputs and four outputs designed for larger multi-amplifier builds where a single distribution point needs to service up to four separate amplifiers. It accepts two 1/0GA or 4GA inputs and provides four 4GA or 8GA outputs.
The satin chrome finish matches the SHD20 for consistent aesthetics across a build, and a protective cover is included. Non-fused main line fusing must be provided externally at the battery.
Features & Benefits
- HPM Series power or ground distribution block
- Two 1/0GA or 4GA inputs, four 4GA or 8GA outputs
- Non-fused — main power run fusing required externally
- Satin chrome finish — corrosion resistant
- Protective cover included
- Compact space-saving design
Technical Specs
| Specification | Detail |
|---|---|
| SKU / Part Number | SHD21 |
| Brand | Stinger |
| Series | HPM |
| Number of Inputs | 2 |
| Input Gauge | 1/0GA or 4GA (max 1/0 AWG) |
| Number of Outputs | 4 |
| Output Gauge | 4GA or 8GA (max 4 AWG) |
| Fused | No — non-fused |
| Finish | Satin chrome |
| Protective Cover | Included |
Compatible With / Goes Well With
Direct Vehicle Fit:
- Universal — suitable for any multi-amplifier power or ground distribution
Goes Well With:
- Stinger SK4201 0GA amplifier wiring kit (0GA/1/0GA input)
- Stinger SK4241 4GA amplifier wiring kit (4GA input)
- Stinger SHD20 HPM distribution block (2-output version for smaller builds)
- Stinger SPF52250 / SPF52300 ANL fuses (for main power run fusing at the battery)
- Car audio amplifiers requiring separate 4GA or 8GA power connections
Frequently Asked Questions
What is the difference between the SHD21 and the SHD20?
The SHD20 has one input and two outputs — suited to two-amplifier builds. The SHD21 has two inputs and four outputs — suited to larger four-amplifier builds or installations requiring more distribution points. Both share the satin chrome finish and non-fused design.
Why does this block have two inputs?
Two inputs allow two separate large-gauge power runs to be combined at the distribution point — for example, two separate battery or power runs feeding a single distribution block, which then splits to four amplifiers. This provides greater flexibility for complex multi-source builds.
Is fusing included?
No. The SHD21 is a non-fused distribution block. Fusing must be provided externally on each power run at the battery using appropriately rated ANL or MIDI fuse holders.
Can this block be used for ground distribution?
Yes. Like the SHD20, the SHD21 can be used on either the positive power or ground side of the installation.
What gauge wire is compatible with each port?
Inputs accept up to 1/0GA (1/0 AWG) wire. Outputs accept up to 4GA (4 AWG) wire. Use correctly sized ring terminals or crimped connectors to match the wire gauge being used.













