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LS'BABQ MB800 Heat Manifold Kit for Masterbuilt Gravity Series 8001 / 7
Product guide

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.

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.
Price
$31.99Save 20%

Reference price: $39.99

Price checked: Nov 14, 2026

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Pros and cons

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.

Technical specifications

9 specifications
Identity and compatibility
BrandLS'BABQ
ModelMB800
Compatible grill modelsMB20040122 MB20040221
Replacement part number9904200046
Dimensions and installation
Dimensions listed20 x 10 x 5 inches
Kit dimensions stated in listing17.9" x 7.67" x 5"
Weight listed4.79 pounds
Installation claimwithout tools
Materials and design
Materialstainless steel

What to know before buying

Listing details to confirm

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.

Who is it for?

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.
LS'BABQ MB800 Heat Manifold Kit for Masterbuilt Gravity Series 800 · photo 2
Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 193 ratings
  • 5 stars69%69%
  • 4 stars16%16%
  • 3 stars10%10%
  • 2 stars2%2%
  • 1 star3%3%

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.

LS'BABQ MB800 Heat Manifold Kit for Masterbuilt Gravity Series 800 · photo 3
Additional product photo 3

Alternative options

Product details in Markdown