Oster Pro 1200 BLSTMB-CBG-000: problems, parts and running costs

Checked: 2026-10-06

Summary

The Oster Pro 1200 BLSTMB-CBG-000 is a 1200 W full-size glass-jar blender whose most common owner complaints are noise at high settings, jar leakage after reassembly, and poor frozen-fruit blending. It has no consumables — running cost is ingredients only. At around $70 or below it is a defensible buy for glass-jar and hot-blending duty; above $130 the measured results do not support it.

Common problems and fixes

Noise at high settings — the most frequently reported complaint; BabyGearLab and multiple owners single out noise on the higher speeds, and Century Life reports the motor sounds labored at high speed. No fix reported; owners learn to live with it or use lower settings. [8][10][7]
Jar leakage after reassembly — the threaded jar bottom has no alignment marking, and one tester had the jar leak on first reassembly because it was not tightened far enough. Oster’s support desk states that about 10 drops per minute at the jar/base interface is normal. Fix: tighten the threaded bottom cap fully and check the seating of the sealing ring over the blade. [7][9]
Frozen-fruit blending is weak — Shouldit’s frozen-fruit smoothie came out chunky after 5 minutes, and one owner reports poor results with frozen berries and ice. No fix reported; plain ice crushing is strong, but fibrous frozen fruit is the weaker case. [6][10]
Blade-drive separation — one owner reports the blade no longer sits tight on the motor, so the motor roars but does not blend, with the unit just out of warranty. Oster’s replacement guidance is blade reassembly and, failing that, a support contact. [1]
Build quality concerns — RTINGS says the unit does not feel very sturdy or durable and is not very well built, while Century Life finds it better built than most in its price range. Unresolved conflict between testers. [5][7]

Parts and consumables

Replacement glass jar (part 178891000000) — sold through Oster partner retailers; price not confirmed in the research. This is the main serviceable part and the reason to consider this over an unbranded glass-jar blender. [1]
Food-processor bowl (part 164205001000) — sold separately by Oster support; does not ship with this model. Price not confirmed. [9]

Yearly running cost

No consumables, pods or proprietary cartridges. Recurring outlay is ingredients only. A replacement jar, if ever needed, is bought through partner retailers at varying prices. [1]

When it is a good buy

At around $70 or below (Shouldit, 2023-07), this is a defensible buy for someone who wants a glass jar, a removable blade, hot blending and the included personal cup. Ice crushing is the strongest measured result, the 3-year warranty is above average for the class, and Oster still sells the replacement jar. [6][2][3][1]

At roughly $100-130, the comparison set widens. Consumer Reports listed the machine at $129.99 and BabyGearLab showed $130 in 2021-07. At these levels the Pro 1200’s advantages over a plastic-jar blender narrow to jar material and the drive warranty. [4][8]

Above $130, there is no evidence-based case for this model. The measured results — chunky frozen-fruit output, high noise, and RTINGS’ assessment that it is not very well built — do not support a premium price. [6][8][5]

Because Oster shows the item out of stock and Best Buy lists this model number as no longer available in new condition, any unit bought now is old stock or used. On a used unit, inspect the glass jar for cracks and chips, and confirm the blade assembly seats tightly and the threaded jar bottom tightens completely. [1][11][7][9]