# LS'BABQ MB800 Heat Manifold Kit for Masterbuilt Gravity Series 800

LS'BABQ MB800 is a replacement heat manifold kit listed for Masterbuilt Gravity Series 800 digital charcoal grills and smokers. It is identified for models MB20040122 and MB20040221 and replaces part number 9904200046. The listing says the base is not included, so this is best suited to replacing the manifold when the existing base can be reused.

- [Original product page](https://best-deals.pro/product/lsbabq-mb800-masterbuilt-gravity-800-heat-manifold)
- [View offer](https://best-deals.pro/visit/lsbabq-mb800-masterbuilt-gravity-800-heat-manifold)
- Market: US
- Language: en-US
- Currency: USD
- Brand: LS'BABQ
- Model: MB800
- Price: 31.99 USD
- Previous price: 39.99 USD
- Discount: 20%
- Price checked: 2026-11-14T06:47:32.954Z
- Rating: 4.4 / 5
- Reviews: 193

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Listed as a replacement for the Masterbuilt Gravity Series 800 and models MB20040122 and MB20040221.
- The listing identifies it as replacement part 9904200046.
- Seller claims stainless-steel construction and tool-free attachment.
- Package claim is for one heat manifold kit. The base is explicitly not included.

## Pros

- Compatibility is named by grill model, which helps buyers compare it with their unit.
- The stated replacement part number gives another concrete way to check fit.
- Tool-free attachment is claimed, which may simplify replacement if the part matches.

## Cons

- The base is not included, so this kit alone will not replace a base that also needs changing.

## Specifications

### Identity and compatibility
- Brand: LS'BABQ
- Model: MB800
- Compatible grill models: MB20040122 MB20040221
- Replacement part number: 9904200046
### Dimensions and installation
- Dimensions listed: 20 x 10 x 5 inches
- Kit dimensions stated in listing: 17.9" x 7.67" x 5"
- Weight listed: 4.79 pounds
- Installation claim: without tools
### Materials and design
- Material: stainless steel

## Before you buy

- The listing gives two different dimension descriptions: 20 x 10 x 5 inches in product details and 17.9" x 7.67" x 5" for the kit. Confirm the physical dimensions and fit against the original part before ordering. The kit is stated to exclude the base.

## A good fit for

- Owners of Masterbuilt Gravity Series 800 grills or smokers, specifically models MB20040122 and MB20040221, replacing the heat manifold while keeping a usable base.
- Buyers who can match replacement part number 9904200046 to their existing component.

## Less suited to

- Anyone who needs a replacement base as part of the same purchase.
- Owners of other Gravity Series models unless their compatibility is separately confirmed.

## Customer feedback

The supplied evidence contains aggregate ratings but no customer-comment summary, so it does not establish specific praised features or reported problems. The overall rating distribution is mostly five-star, with a smaller spread across lower ratings. Treat that as a broad satisfaction signal rather than evidence of fit, dimensions, durability, or easy installation. For this replacement part, matching the grill model and checking the base and dimension details are more directly useful.

## Frequently asked questions

### Which grills is this manifold listed to fit?
The listing names Masterbuilt Gravity Series 800 grills and smokers, models MB20040122 and MB20040221. Compare the model and replacement number 9904200046 with your existing part.
### Does the kit include the base?
No. The listing explicitly says the base is not included.
### What are the listed dimensions?
Product details state 20 x 10 x 5 inches, while the kit description gives 17.9" x 7.67" x 5". Since these differ, verify the dimensions and fit before buying.
### Does installation require tools?
The seller claims the manifold can be attached without tools. This is a listing claim, not an independently verified installation result.

## Alternative options

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## Images

![LS'BABQ MB800 Heat Manifold Kit for Masterbuilt Gravity Series 800 — 1](https://best-deals.pro/i/YNz4vpNN-hraw41J7D88t-IHEGBPiK86DnXr2HNYe_uCrFS8yq6XRL5U3ecwtSzbxBEu4z5cSvGIhsKh5wQq4TJWfqX6Otq-XeU8i2nAHnGE2MuW0JRS1hsh.jpg)

![LS'BABQ MB800 Heat Manifold Kit for Masterbuilt Gravity Series 800 — 2](https://best-deals.pro/i/TFpfC4ffvCoOcu_uNzjx3ZJirALxgGtTSs5qvWFRfIePWR3vE_aRvF5QABLO8XK6pb3S1xLEJQ6AYS2jCerU_-CQSca0fnTWxKx45NIeDdd8B6dALadMVpE-.jpg)

![LS'BABQ MB800 Heat Manifold Kit for Masterbuilt Gravity Series 800 — 3](https://best-deals.pro/i/Z-IUtHBXmw9QD5SK3OV6EV3LVwsp9T1WKnCWnMo3HTH9cdc0blhJ-EZuBvQz4qNMRLgJhT-6ePl7em2AdiTTaS0PQbctec9nFn6q3SfpQbNvd6eI0ra7hGBf.jpg)

![LS'BABQ MB800 Heat Manifold Kit for Masterbuilt Gravity Series 800 — 4](https://best-deals.pro/i/3HRRlyBsrjlitS1GyQ3Kw9Mu-Fs8ZNGgSHNOE2zhbn8lugcElxjAu7OhtcGqpYMJnOc2Y8-aUAPraSjOuoAZ2lq-xiSXKcSFWz-Gt2jd5HI5MxeM_z0msGZd.jpg)

![LS'BABQ MB800 Heat Manifold Kit for Masterbuilt Gravity Series 800 — 5](https://best-deals.pro/i/rLJVkhThi7skxi1NWwnNWizq1iBiZ1xIuwHzLMv3yjpj7-n5mf0jLfZQ1g8yz0Dn-0zgiPz5qj56VadXvznWXlPAH69B67OFmcQBR0OL8M9PJ_Lbz4lSxWem.jpg)

![LS'BABQ MB800 Heat Manifold Kit for Masterbuilt Gravity Series 800 — 6](https://best-deals.pro/i/_7mZxNlCu2SWMy-CbayVQqQKLJc07zvjbAuGUgw09hR4CAXeso1jBKDeGiUHYIwUeVVl-rTHWifImItEiHDHDoEsNPCTxsyqb1X1arDVkoQsfOKmN-9cioHw.jpg)

![LS'BABQ MB800 Heat Manifold Kit for Masterbuilt Gravity Series 800 — 7](https://best-deals.pro/i/WMUpwKQMQTcJizVl_XBOEnhkP3_nhUPHQQmTcT_XUS3WJd-VqvoXw76ftt03VU1XlANYE_BQBGq34SkkPGgtHsaKk-TARsi_KncSf-8wpBF75XUK-Defqomq.jpg)